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Study sets matching "vocab geometry 9"

10 terms
Geometry Vocabulary/Spelling #9
ACUTE TRIANGLE... Draw and label an acute…
OBTUSE TRIANGLE... What types of angles a…
RIGHT TRIANGLE... What term(s) describes…
EQUIANGULAR TRIANGLE... Explain why each…
One is obtuse and the other two are acute.
ACUTE and COMPLEMENTARY
The sum of the angles of a triangle is 180 degrees and 180 di…
ACUTE TRIANGLE... Draw and label an acute…
OBTUSE TRIANGLE... What types of angles a…
One is obtuse and the other two are acute.
Chapter 9 Geometry Vocabulary
bases
bisect
circle
concentric circles
the congruent parallel polygons that form the "top" and "bott…
to divide into two congruent parts
the set of all points on a flat surface that are the same dis…
circles that have the same center
bases
the congruent parallel polygons that form the "top" and "bott…
bisect
to divide into two congruent parts
17 terms
Math 9 Geometry Vocabulary
Line
Line Segment
Ray
Transversal
a set of points that moves forever in opposite directions ↔
a part of a line that has two end points. ... (Measureable)
a set of points with one end point
a line that intersects (touches) 2 or more lines
Line
a set of points that moves forever in opposite directions ↔
Line Segment
a part of a line that has two end points. ... (Measureable)
24 terms
Chapter 9 Geometry Vocabulary
bases
bisect
circle
concentric circles
the congruent parallel polygons that form the "top" and "bott…
to divide into two congruent parts
the set of all points on a flat surface that are the same dis…
circles that have the same center
bases
the congruent parallel polygons that form the "top" and "bott…
bisect
to divide into two congruent parts
22 terms
Geometry Vocabulary Ch. 9
POINT
Complimentary Angles
Acute Triangle
Equilateral triangle
POINT
Complimentary Angles
49 terms
Geometry Ch. #9 Vocabulary
point line plane postulate
Unique line assumption
number line assumption
dimension assumption
1. through any two points there is exactly one line. 2. a lin…
through any two points, there is exactly one line.
every line is a set of points that can be put into a one-to-o…
1) given a line in a plane, there is at least one point in th…
point line plane postulate
1. through any two points there is exactly one line. 2. a lin…
Unique line assumption
through any two points, there is exactly one line.
18 terms
Geometry Chapter 9 Vocabulary
angle of rotation
axis symmetry
center of rotation
composition of transformations
...
...
...
...
angle of rotation
...
axis symmetry
...
17 terms
Geometry Chapter 9 Vocabulary
transformation
reflection
line of reflection
isometry
In a pane, a mapping for which each point has exactly one ima…
A transformation representing a flip of the figure over a poi…
A line through a figure that separates the figure into two mi…
A mapping for which the original figure and its image are con…
transformation
In a pane, a mapping for which each point has exactly one ima…
reflection
A transformation representing a flip of the figure over a poi…
Geometry Chapter 9 Vocabulary
Ratio
Proportion
Cross Products
Geometric Mean
A comparison of two quantities
An equation that states that two ratios are equal
In a proportion, if a/b=c/d, then ad = ba
In a proportion, If a/b = x/b, the geometric mean ... of a and b…
Ratio
A comparison of two quantities
Proportion
An equation that states that two ratios are equal
15 terms
Geometry Unit 9 Vocabulary
Line of reflection
Translation vector
Center of rotation
Angle of rotation
Each point of the primage and its corresponding point on the…
A translation is a function that maps each point to its image…
A rotation about a fixed point, through an angle of x degrees
The angle that the preimage was rotated to form the image
Line of reflection
Each point of the primage and its corresponding point on the…
Translation vector
A translation is a function that maps each point to its image…
24 terms
Geometry 9 Chapter 2 Vocabulary List
Conditional
Hypothesis
Conclusion
Truth value
An if-then statement
The if part of a conditional
The then part of a conditional
Whether a conditional is true or false
Conditional
An if-then statement
Hypothesis
The if part of a conditional
15 terms
Geometry Ch. 9 Vocabulary
congruent circles
concentric circles
radius
chord
same diameter
share the same center or axis
the length of a line segment from its center to its perimeter
straight line segment whose endpoints both lie on the circle
congruent circles
same diameter
concentric circles
share the same center or axis
25 terms
Geometry Unit 9: Circles Vocabulary
circle
radius
chord
diameter
the set of all points in a plane that are equidistant from a…
a segment whose endpoints are the center of a circle and any…
a segment whose endpoints are on a circle
a chord that contains the center of the circle
circle
the set of all points in a plane that are equidistant from a…
radius
a segment whose endpoints are the center of a circle and any…
33 terms
Topic 9 Geometry Vocabulary
Quadrilateral
Triangle
Line
Point
A polygon with four sides
A polygon with three sides
A straight path of points that goes on forever in two directi…
An exact location in space
Quadrilateral
A polygon with four sides
Triangle
A polygon with three sides
5 terms
Geometry Angle Vocabulary week 9
complementary angles
supplementary angles
vertical angles
adjacent angles
either of two angles whose sum is 90°
either of two angles whose sum is 180°.
each of the pairs of opposite angles made by two intersecting…
have a common side and a common vertex (corner point) and don…
complementary angles
either of two angles whose sum is 90°
supplementary angles
either of two angles whose sum is 180°.
15 terms
Geometry Chapter 9 Vocabulary
Transformation
Rigid or Congruence Transformation
Examples of Rigid Transformation
Non-Rigid or Similarity Transformation
changes the orientation, location, and size of a figure
a transformation where the figure maintains its shape and size
reflection, translation, rotation
a transformation where the figure maintains its shape but not…
Transformation
changes the orientation, location, and size of a figure
Rigid or Congruence Transformation
a transformation where the figure maintains its shape and size
21 terms
Geometry Vocabulary 9
Transformation
Preimage
Image
Isometry
Four specific ways to manipulate the shape of a point, a line…
The set of arguments of a function corresponding to a particu…
Image is the resulting point or set of points under a transfo…
The distance between any two points in the preimage must be t…
Transformation
Four specific ways to manipulate the shape of a point, a line…
Preimage
The set of arguments of a function corresponding to a particu…
34 terms
Discoverying Geometry 1.6-1.9 vocabulary
polygon
diagonal of a polygon
Convex polygon
concave polygon
a closed plane figure formed by three or more line segments
Any segment that connects 2 nonconsecutive (nonadjacent) vert…
a polygon in which no line that contains a side of the polygo…
a polygon that has an indentation
polygon
a closed plane figure formed by three or more line segments
diagonal of a polygon
Any segment that connects 2 nonconsecutive (nonadjacent) vert…
21 terms
Math 9 Circle Geometry Vocab
Tangent-Radius Property
Angle-Sum Property
Pythagorean Theorem
Centre Point
A tangent is perpendicular (forms right angle) to the radius…
The sum of the 3 angles in a triangle is always 180°
a² + b² = c²
The point at the perfect centre of the circle.
Tangent-Radius Property
A tangent is perpendicular (forms right angle) to the radius…
Angle-Sum Property
The sum of the 3 angles in a triangle is always 180°
26 terms
Chapter 9 Vocabulary - Geometry
transformation
preimage
image
rigid motion
a function, or mapping that results in a change in the positi…
the original figure in a transformation; "the before"
the resulting figure in a transformation; "the after"
a transformation that preserves distance and angle measures;…
transformation
a function, or mapping that results in a change in the positi…
preimage
the original figure in a transformation; "the before"
82 terms
Geometry Ch. #6 - Ch. 9 Vocabulary
Rectangle
Diagnols of a Rectangle
Converse of Diagnols of a Rectangle
Rhombus
A parallelogram with four right angles
If a parallelogram is a rectangle, then its diagonals are con…
If the diagonals of a parallelogram are congruent, then the p…
A parallelogram with 4 congruent sides
Rectangle
A parallelogram with four right angles
Diagnols of a Rectangle
If a parallelogram is a rectangle, then its diagonals are con…
14 terms
Geometry Chapter 9 Vocabulary
Pythagorean Triple
Perfect Square
Pythagorean Theorem
Integer
a set of three positive integers a, b, & c that satisfy the e…
a positive number whose square root is a whole number
in a right triangle, the square of the length of the hypotenu…
the set of whole numbers and their opposites
Pythagorean Triple
a set of three positive integers a, b, & c that satisfy the e…
Perfect Square
a positive number whose square root is a whole number
15 terms
Chapter 9 Geometry Vocabulary
Reflection
Line Of Reflection
Isometry
Line of Symmetry
A transformation that flips a figure.
A line that separates two reflected figures.
States that a reflection is a congruence transformation.
A line that divides a plane figure so it is reflected.
Reflection
A transformation that flips a figure.
Line Of Reflection
A line that separates two reflected figures.
11 terms
Sheltered Geometry: Chapter 9 Vocabulary
Transformation
Preimage
Image
Rigid Motion
A change in position, size, or shape of a geometric figure.
Original figure before a transformation. (Ex. Triangle ABC)
Resulting figure after a transformation. (Ex. Triangle A'B'C')
Transformation in the plane that preserves distance and angle…
Transformation
A change in position, size, or shape of a geometric figure.
Preimage
Original figure before a transformation. (Ex. Triangle ABC)
14 terms
Geometry Ch.9 Vocabulary
Converse
Right Triangle
Altitude
Proportion
the "If" and "Then" parts of the sentence are switched.
A triangle with a right angle which is 90 degrees
A line segment through a vertex and perpendicular line contai…
an equation stating two ratios are equal
Converse
the "If" and "Then" parts of the sentence are switched.
Right Triangle
A triangle with a right angle which is 90 degrees
17 terms
9 Weeks Geometry Vocabulary Review
line
segment
ray
collinear
figure that extends in two directions with no endpoints
figure that has two endpoints
figure with one endpoint that extends in one direction
points on the same line
line
figure that extends in two directions with no endpoints
segment
figure that has two endpoints
15 terms
Geometry Chapter 9 Vocabulary
Transformation
Rigid or Congruence Transformation
Examples of Rigid Transformation
Non-Rigid or Similarity Transformation
changes the orientation, location, and size of a figure
a transformation where the figure maintains its shape and size
reflection, translation, rotation
a transformation where the figure maintains its shape but not…
Transformation
changes the orientation, location, and size of a figure
Rigid or Congruence Transformation
a transformation where the figure maintains its shape and size
16 terms
Geometry Chapter 9: Extending Transformational Geometry Vocabulary
9.1 isometry
9.4 composition of transformations
9.4 glide reflection
9.5 symmetry
a transformation that does not change the shape or size of a…
one transformation followed by another
the composition of a translation and a reflection across a li…
a figure in which a transformation of the figure coincides wi…
9.1 isometry
a transformation that does not change the shape or size of a…
9.4 composition of transformations
one transformation followed by another
15 terms
Geometry Vocabulary
Alternate Interior Angles
Consecutive Interior Angles
Alternate Exterior Angles
Corresponding Angles
Located on the interior of the lines, on opposite sides of th…
Located on the interior of the lines, on the same side of the…
Located on the exterior of the lines, on opposite sides of th…
Located on the interior and exterior of the lines, on the sam…
Alternate Interior Angles
Located on the interior of the lines, on opposite sides of th…
Consecutive Interior Angles
Located on the interior of the lines, on the same side of the…
16 terms
Chapter 9 Vocabulary Geometry
Compositions of Transformations
Congruence Transformations/Isometry
Dilation
Glide Reflection
when a second transformation is performed on the image of a f…
transformation in which an original figure and its image are…
a transformation of a figure by reducing or enlarging it with…
composition of a translation followed by a reflection across…
Compositions of Transformations
when a second transformation is performed on the image of a f…
Congruence Transformations/Isometry
transformation in which an original figure and its image are…
5 terms
Geometry Chapter 9 Vocabulary
Pre Image
Image
Rigid motion
Isometry
The original figure
The resulting image
Transformation that preserves distance and angle measure
Equal measure
Pre Image
The original figure
Image
The resulting image
13 terms
geometry unit 9 vocabulary
reflections
translations
rotations
dilations
flipped across a line
slide
spin around origin
enlarge/reduce by scale factor (k)
reflections
flipped across a line
translations
slide
12 terms
Big Ideas Math Geometry Chapter 9 Vocabulary
angle of depression
angle of elevation
cosine
geometric mean
The angle that a downward line of sight makes with a horizont…
The angle that an upward line of sight makes with a horizonta…
A trigonometric ratio for acute angles that involves the leng…
The positive number x that satisfies a/x = x/b... So, x² = ab an…
angle of depression
The angle that a downward line of sight makes with a horizont…
angle of elevation
The angle that an upward line of sight makes with a horizonta…
Geometry Chapter 9 Vocabulary
angle of rotation
axis symmetry
center of rotation
composition of transformations
...
...
...
...
angle of rotation
...
axis symmetry
...
53 terms
Geometry 9: Unit 10
transformation
translation
<a,b>
(x,y)
a mapping of a figure resulting in a change in the position,…
a transformation moving every point in the same distance & di…
what to translate by
point/ordered pair
transformation
a mapping of a figure resulting in a change in the position,…
translation
a transformation moving every point in the same distance & di…
24 terms
Geometry Vocabulary--Chapter 9
transformation
image
translation
reflection
a function, or mapping, that results in a change of the posit…
resulting figure
a transformation that maps all pts of a figure the same dista…
is a transformation with the following properties:... if a point…
transformation
a function, or mapping, that results in a change of the posit…
image
resulting figure
28 terms
Chapter 9 geometry vocabulary
Transformation
Preimage
Image
Isometry
change is size, position, size, or shape of figure
original figure
the new figure
does not change size or shape
Transformation
change is size, position, size, or shape of figure
Preimage
original figure
22 terms
Geometry 9 vocabulary
Transformation
Preimage
Image
Rigid motion
A function or mapping that results in a change in the positio…
The original figure
The resulting figure
A transformation that preserves distance and angle measures
Transformation
A function or mapping that results in a change in the positio…
Preimage
The original figure
13 terms
Geometry Chap. 9 Vocabulary
Transformation
Isometry
Preimage
Image
A change in its position, shape, or size. (a geometric figure)
Transformation in which the preimage and image are congruent
The original figure
The resulting figure
Transformation
A change in its position, shape, or size. (a geometric figure)
Isometry
Transformation in which the preimage and image are congruent
16 terms
Chapter 9 Geometry key vocabulary
angle of rotation
angle of rotational symmetry
center of dilation
center of rotation
an angle formed by a rotating ray, called the terminal side,…
The smallest angle through which a figure with rotational sym…
The intersection of the lines that connect each point of the…
The point around which a figure is rotated.
angle of rotation
an angle formed by a rotating ray, called the terminal side,…
angle of rotational symmetry
The smallest angle through which a figure with rotational sym…
14 terms
Vocabulary 9 geometry
angle of rotation
axis of symmetry
center of rotation
composition of transformation
the angle through which a preimage is rotated to form the ima…
symmetry in a 3-D figure that occurs if the figure can be map…
a fixed point around which shapes move in a circular motion t…
the resulting transformation when a transformation is applied…
angle of rotation
the angle through which a preimage is rotated to form the ima…
axis of symmetry
symmetry in a 3-D figure that occurs if the figure can be map…
15 terms
Geometry Chapter 9 Vocabulary
reference angle
opposite side
adjacent side
rationalizing the denominator
the angle of the triangle that you are looking at
the side opposite the reference angle
the side adjacent to the reference angle that is not the hypo…
the process of rewriting a fraction so that no irrational num…
reference angle
the angle of the triangle that you are looking at
opposite side
the side opposite the reference angle
10 terms
Geometry Chapter 9 Vocabulary
Parallelogram Area Conjecture
Triangle Area Conjecture
Trapezoid Area Conjecture
Kite Area Conjecture
the area of a parallelogram is given by the formula A=bh wher…
the area of a triangle is given by the formula A+1/2 bh A bei…
the area of a trapezoid is given by the formula A= 1/2(b1=b2)…
the area of a kite is given by the formula A=1/2 D1 x D2
Parallelogram Area Conjecture
the area of a parallelogram is given by the formula A=bh wher…
Triangle Area Conjecture
the area of a triangle is given by the formula A+1/2 bh A bei…
10 terms
Geometry vocabulary lesson 9
Definition of Quadrilateral
Parallogram
Definition of Parallelogram
Definition of a Rectangle
1.) Parallelogram... 2.) Rhombus... 3.) Trapezoid... 4.) Rectangle... 5.)…
A parallelogram is a quadrilateral that has 2 pairs of opposi…
1.) Opposite sides are congruent... 2.) Opposite angles are cong…
4 right angles
Definition of Quadrilateral
1.) Parallelogram... 2.) Rhombus... 3.) Trapezoid... 4.) Rectangle... 5.)…
Parallogram
A parallelogram is a quadrilateral that has 2 pairs of opposi…
21 terms
Geometry Vocabulary Ch. 9
Transformation
Preimage
Image
Isometry
a thorough or dramatic change in form or appearance
of a particular subset S of the codomain of a function is the…
The new position of a point, a line, a line segment, or a fig…
is invariant with respect to distance
Transformation
a thorough or dramatic change in form or appearance
Preimage
of a particular subset S of the codomain of a function is the…
10 terms
Chapter 9 Geometry Vocabulary
Congruence transformation
Dilation
Image
Isometry
A transformation that preserves length and angle measure
A transformation that stretches or shrinks a figure to create…
The new figure that is produced in a transformation
The distance between two given points that is the same distan…
Congruence transformation
A transformation that preserves length and angle measure
Dilation
A transformation that stretches or shrinks a figure to create…
14 terms
Geometry Vocabulary Chapter 9
angle of depression
angle of elevation
component form
cosine
the angle formed by a horizontal line and a sight to a point…
the angle formed by a horizontal line and a line of sight to…
the form of a vector that lists the vertical and horizontal c…
in a right triangle angle A is the ratio of the length of the…
angle of depression
the angle formed by a horizontal line and a sight to a point…
angle of elevation
the angle formed by a horizontal line and a line of sight to…
41 terms
Year 9 Geometry I
Vertically opposite angles are...
Angles on a straight line add to...
Isosceles Triangle
Obtuse Angle
equal
180 degrees
Two sides the same length, and two angles the same size
Measures between 90 and 180 degrees
Vertically opposite angles are...
equal
Angles on a straight line add to...
180 degrees
18 terms
Geometry Chapter 9 Vocabulary
Circle
Radius
Radii
Chord
shape consisting of points in a plane which are equidistant f…
a line from the center of the circle to any point on the circle
more than one radius
a line segment that links two points on a circle
Circle
shape consisting of points in a plane which are equidistant f…
Radius
a line from the center of the circle to any point on the circle
23 terms
Geometry Vocabulary: Unit 9
Rigid motion
Preimage
Image
Translation
A transformation that preserves distance and angle measures
In a transformation, the original figure
Resulting figure in a transformation
A transformation that maps all points of a figure the same di…
Rigid motion
A transformation that preserves distance and angle measures
Preimage
In a transformation, the original figure
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