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Study sets matching "geometry 8"

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Study sets matching "geometry 8"

11 terms
Geometry 1.8
Perimeter
Area
Perimeter - Square
Area - Square
The sum of the lengths of the sides of a polygon. (P)
The number of square units a polygon encloses. (A)
Side length is s, P=4s
Side length is s, A=s²
Perimeter
The sum of the lengths of the sides of a polygon. (P)
Area
The number of square units a polygon encloses. (A)
19 terms
Chapter 8 Geometry Vocabulary
radius (regular polygon)
polygon
remote interior angles
linear scale factor
a line segment that connects the center of a regular polygon…
a two-dimensional closed figure of three or more line segment…
when a triangle has an exterior angles, these angles are the…
the ratio of similarity. the ratio of any pair of correspondi…
radius (regular polygon)
a line segment that connects the center of a regular polygon…
polygon
a two-dimensional closed figure of three or more line segment…
19 terms
Geometry 8
Ratio of a to b
Proportion
Extremes
Means
If a and b are to quantities that are measured in the same un…
An equation that equates two ratios.
In proportion a/b=c/d, they are a and d.
In proportion a/b=c/d, they are b and c.
Ratio of a to b
If a and b are to quantities that are measured in the same un…
Proportion
An equation that equates two ratios.
Chapter 8 Geometry Vocabulary
radius (regular polygon)
polygon
remote interior angles
linear scale factor
a line segment that connects the center of a regular polygon…
a two-dimensional closed figure of three or more line segment…
when a triangle has an exterior angles, these angles are the…
the ratio of similarity. the ratio of any pair of correspondi…
radius (regular polygon)
a line segment that connects the center of a regular polygon…
polygon
a two-dimensional closed figure of three or more line segment…
37 terms
Geometry Ch., 1-5
acute
obtuse
point
segment
angle less than 90 degrees
angle greater than 90 degrees
no size
has endpoints
acute
angle less than 90 degrees
obtuse
angle greater than 90 degrees
29 terms
Geometry Ch. #8 Vocabulary
Geometric Mean
Triangle Hypotenuse Altitude Theorem
Geometric Mean (Altitude) Theorem
Geometric Mean (Leg) Theorem
The positive root of the product of two numbers
If the altitude is drawn to the hypotenuse of a right triangl…
The altitude drawn to the hypotenuse of a right triangle sepa…
The altitude drawn to the hypotenuse of a right triangle sepa…
Geometric Mean
The positive root of the product of two numbers
Triangle Hypotenuse Altitude Theorem
If the altitude is drawn to the hypotenuse of a right triangl…
13 terms
Geometry Module 8
altitude of a triangle
centroid of a triangle
circumcenter of a triangle
circumscribed circle
a perpendicular segment from a vertex to the line containing…
the point of concurrency of the three medians of a triangle;…
the point of concurrency of the three perpendicular bisectors…
every vertex of the polygon lies on the circle
altitude of a triangle
a perpendicular segment from a vertex to the line containing…
centroid of a triangle
the point of concurrency of the three medians of a triangle;…
43 terms
6-8 Geometry Vocabulary
point
line
line segment
ray
an exact location in space
A set of points that goes on forever in both directions.
Part of a line that has two endpoints.
part of a line that has an endpoint and extends forever in on…
point
an exact location in space
line
A set of points that goes on forever in both directions.
30 terms
geometry 8
reflection
line of reflection
pre image
image
A transformation that "flips" a figure over a mirror or line.
A line that a figure is flipped across to create a mirror ima…
The original geometric figure
figure after a reflection
reflection
A transformation that "flips" a figure over a mirror or line.
line of reflection
A line that a figure is flipped across to create a mirror ima…
12 terms
8. Geometry
Transformation
Translation
Reflection
Dilation
The movement of a geometric figure
A slide of the figure
A transformation that "flips" a figure over a mirror or refle…
A transformation that changes the size of an object, but not…
Transformation
The movement of a geometric figure
Translation
A slide of the figure
20 terms
geometry 8
largest
product
to simplify (or reduce) a radical:... 1. find the ______ perfect…
2. write the number appearing under your radical as the _____…
largest
to simplify (or reduce) a radical:... 1. find the ______ perfect…
product
2. write the number appearing under your radical as the _____…
15 terms
Geometry 8
Standard Form
Slope Intercept Form
Point Slope Form
Slope Formula
Ax+By=C
y=mx+b
y-y1=m(x-x1)
y2-y1... -------... x2-x1
Standard Form
Ax+By=C
Slope Intercept Form
y=mx+b
25 terms
geometry 8
the sum of the interior angles
how to find one interior angle
the measure of an exterior angle
slope
(n-2)180
(n-2)180/n
360/n
the sum of the interior angles
(n-2)180
how to find one interior angle
(n-2)180/n
16 terms
Grade 8 Geometry
adjacent angles
alternate exterior angles
alternate interior angles
supplementary angles
side by side angles that share a common vertex and a ray
angles that lie outside a pair of parallel lines and on oppos…
Angles that lie within a pair of parallel lines and on opposi…
Angles that add to 180 degrees (can be adjacent or non-adjace…
adjacent angles
side by side angles that share a common vertex and a ray
alternate exterior angles
angles that lie outside a pair of parallel lines and on oppos…
22 terms
geometry 8
equal
nonzero
largest
pythagorean thm:... in a right triangle, the sum of the squares…
pythagorean triple: a set of _____... numbers that satisfy the e…
to simplify (or reduce) a radical:... 1. find the ______ perfect…
equal
pythagorean thm:... in a right triangle, the sum of the squares…
nonzero
pythagorean triple: a set of _____... numbers that satisfy the e…
14 terms
Geometry 8
Proportion
proportion 1
proportion 2
proportion 3
setting 2 fractions equal to eachother
setting cross products equal to eachother
rearranging or flipping the fraction and then setting them eq…
making the numerators a fraction and the denominators a fract…
Proportion
setting 2 fractions equal to eachother
proportion 1
setting cross products equal to eachother
27 terms
Geometry Grade 7 8 9
Equilateral triangle
Isosceles triangle
Scalene triangle
Right angle triangle
All sides equal, interior angles 60°
2 sides equal, 2 congruent angles (opposite angles equal)
No sides or angles equal
1 right angle 90°
Equilateral triangle
All sides equal, interior angles 60°
Isosceles triangle
2 sides equal, 2 congruent angles (opposite angles equal)
14 terms
Geometry Vocabulary 1-8
polygon
triangle
quadrilateral
pentagon
closed plane figure formed by three or more segments
3 sided polygon
4 sided polygon
5 sided polygon
polygon
closed plane figure formed by three or more segments
triangle
3 sided polygon
8 terms
Math 8 Geometry
translation
reflection
rotation
dilation
slide
flip
turn
reduce or enlarge
translation
slide
reflection
flip
11 terms
Geometry Grade 8
Right Angle... زاوية مستقيمة
Obtuse Angle... زاوية منفرجة
Acute Angle... زاوية حادة
Supplementary Angles... الزوايا التكميلية
Angle that measures 90 degrees
Angle that measures greater than 90 degrees and less than 180…
Angle that measures less than 90 degrees
2 angles that add up to equal 180 degrees
Right Angle... زاوية مستقيمة
Angle that measures 90 degrees
Obtuse Angle... زاوية منفرجة
Angle that measures greater than 90 degrees and less than 180…
12 terms
H Geometry topic 8
median of a triangle
altitude of a triangle
perpendicular bisector
angle bisector
a segment whose endpoints are a vertex and the midpoint of th…
A perpendicular segment from a vertex to the line containing…
a segment, ray, line, or plane that is perpendicular to a seg…
a ray that divides an angle into two congruent angles
median of a triangle
a segment whose endpoints are a vertex and the midpoint of th…
altitude of a triangle
A perpendicular segment from a vertex to the line containing…
37 terms
Math 8 Geometry Terms
Point
Line
Segment
Ray
a specific location on a coordinate plane.
A straight path that extends without end in opposite directio…
A part of a line between two endpoints.
a straight line extending from a point
Point
a specific location on a coordinate plane.
Line
A straight path that extends without end in opposite directio…
11 terms
Topic 8--Coordinate Geometry
coordinate plane
x-axis
y-axis
quadrants
A grid formed by a horizontal number line called the x-axis a…
the horizontal number line on a coordinate plane
The vertical number line on a coordinate plane.
one of the four regions into which the x and y axes separate…
coordinate plane
A grid formed by a horizontal number line called the x-axis a…
x-axis
the horizontal number line on a coordinate plane
31 terms
Geometry 8
Diagonal
Endpoint
Midpoint
Distance formula
A line segment that connects two nonconsecutive vertices of a…
A point at the end of a ray, either end of a line segment, or…
The point halfway between the endpoints of a line segment
The formula that gives the distance between two points on a c…
Diagonal
A line segment that connects two nonconsecutive vertices of a…
Endpoint
A point at the end of a ray, either end of a line segment, or…
12 terms
Geometry 8
Rectangle
Parallelogram
Triangle
Kite
bh or lw
bh or lw
1/2 bh
1/2 d1 d2
Rectangle
bh or lw
Parallelogram
bh or lw
24 terms
Geometry 8
definition of a line
definition of intersecting lines
definition of intersecting planes
definition of a plane
through any two points there is exactly one line.
if two distinct lines intersect then they intersect in exactl…
if two distinct planes intersect, then they intersect in exac…
through any noncollinear points there is exactly one plane
definition of a line
through any two points there is exactly one line.
definition of intersecting lines
if two distinct lines intersect then they intersect in exactl…
25 terms
Chapter 8: Geometry
plane shape
solid shape
face
edge
a flat shape, such as a square
a 3D shape
a flat surface on a solid figure
the line segment made by two faces joining together
plane shape
a flat shape, such as a square
solid shape
a 3D shape
10 terms
geometry(8)
Perpendicular bisector
Plane
Preimage
Pythagorean Theorem
A line that is perpendicular to a segment at its midpoint.
A flat surface
...
A²+B²=C²
Perpendicular bisector
A line that is perpendicular to a segment at its midpoint.
Plane
A flat surface
12 terms
Geometry Lesson 1.8 Vocabulary
Space
Cone
Cylinder
Pyramid with a square base
the set of all points. Cannot be contained in a flat surface…
Has a circular base and sides that rise to a point.
Has 2 circular bases.
A square base that has sides that meet at a point.
Space
the set of all points. Cannot be contained in a flat surface…
Cone
Has a circular base and sides that rise to a point.
Geometry Chapter 8
Area of a circle
Area of a trapezoid
Area of a Sector
Area of a rhombus
Area of a circle
Area of a trapezoid
8 terms
Geometry Lesson 8
formula
perimeter
perimeter of a rectangle
area
a mathematical relationship expressed with symbols
the sum of the side lengths
the size of the region bounded by the figure
formula
a mathematical relationship expressed with symbols
perimeter
the sum of the side lengths
19 terms
Grade 8 Geometry
adjacent angles
alternate exterior angles
alternate interior angles
supplementary angles
side by side angles that share a common vertex and a ray
angles that lie outside a pair of parallel lines and on oppos…
Angles that lie within a pair of parallel lines and on opposi…
Angles that add to 180 degrees (can be adjacent or non-adjace…
adjacent angles
side by side angles that share a common vertex and a ray
alternate exterior angles
angles that lie outside a pair of parallel lines and on oppos…
32 terms
geometry8
What is a translation?
The image of a polygon
In a polygon rotation, do you have to…
Rigid transformation examples
A movement of all the points in the same direction for the sa…
The new set of points of the polygon after a transformation
No, you can rotate around any location on the plane
Translation, rotation, reflection
What is a translation?
A movement of all the points in the same direction for the sa…
The image of a polygon
The new set of points of the polygon after a transformation
18 terms
Math 8 - Unit 11Reasoning in Geometry
CORRESPONDING ANGLES
DEDUCTIVE REASONING
EXTERIOR ANGLE OF A TRIANGLE
REMOTE INTERIOR ANGLES
Angles that lie on the same side of a transversal and in corr…
A process of reasoning logically from given facts to a conclu…
An angle formed by a side of the triangle and an extension of…
The interior angles of a triangle that are not adjacent to a…
CORRESPONDING ANGLES
Angles that lie on the same side of a transversal and in corr…
DEDUCTIVE REASONING
A process of reasoning logically from given facts to a conclu…
6 terms
Geometry- Unit 8.4
If a trapezoid is isosceles, then each…
If a trapezoid has a pair of congruent…
A trapezoid is isosceles if and only i…
The midsegment of a trapezoid is paral…
Midsegment Theorem for Trapezoids
If a trapezoid is isosceles, then each…
If a trapezoid has a pair of congruent…
29 terms
G8 Geometry Terms
geometry
1/2 x b x h
base
clockwise
a branch of math that deals with the properties of points, li…
formula for the area of a triangle
the "bottom" part of a triangle
the same direction that the hands of a clock turn
geometry
a branch of math that deals with the properties of points, li…
1/2 x b x h
formula for the area of a triangle
10 terms
Geometry Ch. 8 Terms
Pythagorean triple
Pythagorean triple
Pythagorean triple
Pythagorean triple
3,4,5,
5,12,13
8,15,17
7,24,25
Pythagorean triple
3,4,5,
Pythagorean triple
5,12,13
25 terms
Geometry Ch. 8
Theorem 8.1: Polygon Interior Angles T…
Corollary to Theorem 8.1: Interior Ang…
Theorem 8.2
parallelogram
The sum of the measures of the interior angles of a convex n-…
The sum of the measures of the interior angles of a quadrilat…
The sum of the measures of the exterior angles of a convex po…
a quadrilateral with both pairs of opposite sides parallel
Theorem 8.1: Polygon Interior Angles T…
The sum of the measures of the interior angles of a convex n-…
Corollary to Theorem 8.1: Interior Ang…
The sum of the measures of the interior angles of a quadrilat…
37 terms
MUS Geometry Lesson 1-8
point
line
endpoint
collinear
the smallest unit of measure with no width or length
an infinite number of connected points
starting point, or origin, of a ray
within the same line
point
the smallest unit of measure with no width or length
line
an infinite number of connected points
12 terms
Geometry Chapter 8
Pythagorean Theorem
Pythagorean Triple
Converse of the Pythagorean Theorem
Theorem 8-3
a² + b² = c²
a set of nonzero whole numbers a, b, and c that make the equa…
If the sum of the squares of the lengths of two sides of a tr…
If the square of the length of the longest side of a triangle…
Pythagorean Theorem
a² + b² = c²
Pythagorean Triple
a set of nonzero whole numbers a, b, and c that make the equa…
14 terms
Week #8 Geometry 1
tangent
distance
sine
cosine
opposite/adjacent
The length of a path between two points
opposite/hypotenuse
adjacent/hypotenuse
tangent
opposite/adjacent
distance
The length of a path between two points
17 terms
Geometry Ch. 8
Area of a plane
Base
Altitude
Height
the measure of the region enclosed by the figure.
any side of a rectangle
any segment from one side of a parallelogram perpendicular to…
length of the side that is perpendicular to the base.
Area of a plane
the measure of the region enclosed by the figure.
Base
any side of a rectangle
9 terms
Geometry Ch. 8 Vocab
Diagonal
Parallelogram
Rhombus
Rectangle
a line segment joining two nonconsecutive vertices of a polyg…
a quadrilateral whose opposite sides are both parallel and eq…
A parallelogram with four equal sides
A parallelogram with four right angles
Diagonal
a line segment joining two nonconsecutive vertices of a polyg…
Parallelogram
a quadrilateral whose opposite sides are both parallel and eq…
25 terms
Geometry: Ch. 8 - Chapter Review - Quadrilaterals
quadrilateral
360
less than
trapezoid
A ______ is a polygon that has four sides.
The sum of the interior angles of any quadrilateral is _____…
The length of a line segment drawn from any vertex of an equi…
A ______ is a quadrilateral which has exactly ONE pair of par…
quadrilateral
A ______ is a polygon that has four sides.
360
The sum of the interior angles of any quadrilateral is _____…
32 terms
Geometry 8/8/16
Point
Line
Line Segment
Angle
The exact point or location on a surface.
A straight one-dimensional figure, having no thickness and ex…
Part of a line that is bounded by two distinct end points, an…
The space between two intersecting lines or close to they poi…
Point
The exact point or location on a surface.
Line
A straight one-dimensional figure, having no thickness and ex…
20 terms
Geometry 8
ratio of a to b
proportion
means
extremes
a:b, if a and b are measured in the same units. The denominat…
an equation that equates two ratios... a/b = c/d
the numbers b and c of the proportion
the numbers a and d of the proportion
ratio of a to b
a:b, if a and b are measured in the same units. The denominat…
proportion
an equation that equates two ratios... a/b = c/d
11 terms
RAHS Geometry Chapter 8
Pythagorean Theorem
Pythagorean Triple
Obtuse Triangle
Acute Triangle
A triangle is a right if the sum of the squares of the length…
a set of nonzero whole numbers a, b, and c that make the equa…
The square of the length of the longest side of a triangle is…
The square of the length of the longest side of a triangle is…
Pythagorean Theorem
A triangle is a right if the sum of the squares of the length…
Pythagorean Triple
a set of nonzero whole numbers a, b, and c that make the equa…
Geometry 8
Cosine
Sine
Consecutive angles
Tetrahedron
Adj/hypo
Oppo/hypo
Angles that are on two ends of any side of a polygon
A polyhedron with four faces all triangles
Cosine
Adj/hypo
Sine
Oppo/hypo
15 terms
geometry 8
rectangle
parallelogram
triangle
trapezoid
bh
bh
1/2•bh
1/2h(b1+b2)
rectangle
bh
parallelogram
bh
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