# Study sets matching "vocab geometry 9"

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ACUTE TRIANGLE... Draw and label an acute…

OBTUSE TRIANGLE... What types of angles ar…

RIGHT TRIANGLE... What term(s) describes t…

EQUIANGULAR TRIANGLE... Explain why each a…

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 div…

ACUTE TRIANGLE... Draw and label an acute…

OBTUSE TRIANGLE... What types of angles ar…

One is obtuse and the other two are acute.

bases

bisect

circle

concentric circles

the congruent parallel polygons that form the "top" and "botto…

to divide into two congruent parts

the set of all points on a flat surface that are the same dist…

circles that have the same center

bases

the congruent parallel polygons that form the "top" and "botto…

bisect

to divide into two congruent parts

Circle

Radius

Chord

Secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle.…

a segment whose endpoints are on a circle

a line that contains a chord

Circle

the locus of points in a plane that are equidistant from a giv…

Radius

the specific distance that determines the size of the circle.…

bases

bisect

circle

concentric circles

the congruent parallel polygons that form the "top" and "botto…

to divide into two congruent parts

the set of all points on a flat surface that are the same dist…

circles that have the same center

bases

the congruent parallel polygons that form the "top" and "botto…

bisect

to divide into two congruent parts

angle of depression

angle of elevation

cosine

geometric mean

The angle that a downward line of sight makes with a horizonta…

The angle that an upward line of sight makes with a horizontal…

The trigonometric ratio for acute angles that involves the len…

angle of depression

The angle that a downward line of sight makes with a horizonta…

angle of elevation

The angle that an upward line of sight makes with a horizontal…

point line plane postulate

Unique line assumption

number line assumption

dimension assumption

1. through any two points there is exactly one line. 2. a line…

through any two points, there is exactly one line.

every line is a set of points that can be put into a one-to-on…

1) given a line in a plane, there is at least one point in the…

point line plane postulate

1. through any two points there is exactly one line. 2. a line…

Unique line assumption

through any two points, there is exactly one line.

Circle

Radius

Chord

Secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle.…

a segment whose endpoints are on a circle

a line that contains a chord

Circle

the locus of points in a plane that are equidistant from a giv…

Radius

the specific distance that determines the size of the circle.…

Circle

Radius

Chord

Secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle.…

a segment whose endpoints are on a circle

a line that contains a chord

Circle

the locus of points in a plane that are equidistant from a giv…

Radius

the specific distance that determines the size of the circle.…

circle

radius

chord

secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle a…

a segment whose endpoints are on a circle

a line that contains a chord

circle

the locus of points in a plane that are equidistant from a giv…

radius

the specific distance that determines the size of the circle a…

Circle

Radius

Chord

Secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle.…

a segment whose endpoints are on a circle

a line that contains a chord

Circle

the locus of points in a plane that are equidistant from a giv…

Radius

the specific distance that determines the size of the circle.…

Alternate Exterior Angles

Alternate Interior Angles

Corresponding Angles

Parallel Lines

nonadjacent exterior angles that lie on opposite sides of a tr…

nonadjacent interior angles that lie on opposite sides of the…

angles that lie on the same side of the transversal and in cor…

coplanar lines that do not intersect

Alternate Exterior Angles

nonadjacent exterior angles that lie on opposite sides of a tr…

Alternate Interior Angles

nonadjacent interior angles that lie on opposite sides of the…

Circle

Radius

Chord

Secant

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle.…

a segment whose endpoints are on a circle

a line that contains a chord

Circle

the locus of points in a plane that are equidistant from a giv…

Radius

the specific distance that determines the size of the circle.…

A transformation in which a second tran…

A transformation in which an original f…

Two figures where there is a sequence o…

A transformation in a plane that has a…

Composition of Transformations

Congruence Transformations (Isometry)

Congruent

Dilation

A transformation in which a second tran…

Composition of Transformations

A transformation in which an original f…

Congruence Transformations (Isometry)

A transformation in which a second tran…

A transformation in which an original f…

Two figures where there is a sequence o…

A transformation in a plane that has a…

Composition of Transformations

Congruence Transformations (Isometry)

Congruent

Dilation

A transformation in which a second tran…

Composition of Transformations

A transformation in which an original f…

Congruence Transformations (Isometry)

Cross products

Extremes

Means

Geometric mean

Every proportion has two of these

20/30=2/3 (20 and 3 are these)

20/30=2/3 (30 and 2 are these)

Between 2 positive numbers a & b is the positive number x in a…

Cross products

Every proportion has two of these

Extremes

20/30=2/3 (20 and 3 are these)

Angle of depression

Angle of elevation

Cosine

Geometric mean

the angle that a downward line of sight makes with a horizonta…

the angle that an upward line of sight makes with a horizontal…

a trigonometric ration for acute angles that involves the leng…

the positive number x that satisfies a/x = x/b So, x^2 = ab an…

Angle of depression

the angle that a downward line of sight makes with a horizonta…

Angle of elevation

the angle that an upward line of sight makes with a horizontal…

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 a

**d = b**aIn 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

transformation

reflection

line of reflection

isometry

In a pane, a mapping for which each point has exactly one imag…

A transformation representing a flip of the figure over a poin…

A line through a figure that separates the figure into two mir…

A mapping for which the original figure and its image are cong…

transformation

In a pane, a mapping for which each point has exactly one imag…

reflection

A transformation representing a flip of the figure over a poin…

Parallel Lines

Perpendicular Lines

Vertical Angles

Adjacent Angles

Two lines that are always the same distance apart and never to…

Lines that intersect with each other to create right angles (9…

Two lines that intersect to create four angles where two angel…

Two angles that have a common side and a common vertex and don…

Parallel Lines

Two lines that are always the same distance apart and never to…

Perpendicular Lines

Lines that intersect with each other to create right angles (9…

circumscribed

major arc

minor arc

semi-circle

a figure that is outside the circle and has points of tangency…

an arc that has a measure greater than 80 degrees

an arc that has a measure less than 80 degrees

an arc that has the endpoints of the diameter

circumscribed

a figure that is outside the circle and has points of tangency…

major arc

an arc that has a measure greater than 80 degrees

Line of reflection

Translation vector

Center of rotation

Angle of rotation

Each point of the primage and its corresponding point on the i…

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 i…

Translation vector

A translation is a function that maps each point to its image…

Solid

Polyhedron

Prism

Cylinder

A three dimensional shape

A solid that is formed by polygons

A polyhedron with two congruent faces that lie in parallel pla…

A solid with two congruent circular bases that lie in parallel…

Solid

A three dimensional shape

Polyhedron

A solid that is formed by polygons

circle

radius

chord

diameter

the locus of points in a plane that are equidistant from a giv…

the specific distance that determines the size of the circle

a segment whose end points are on the circle

a chord that passes through the center

circle

the locus of points in a plane that are equidistant from a giv…

radius

the specific distance that determines the size of the circle