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Geometry Vocabulary

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26 cards

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Section 1

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Line segment

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Geometry Math

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (26)

Section 1

(26 cards)

Line segment

Front

A part of a line with two endpoints

Back

straight angle

Front

an angle that measures 180 degrees

Back

adjacent angles

Front

Angles that have a common side and a common vertex (corner point).

Back

Complementary angles

Front

Two angles whose sum is 90 degrees

Back

Angle addition postulate

Front

If P is in the interior of <RST, then m<RSP + m<PST = m<RST

Back

Plane

Front

A flat surface that has no thickness and extends forever.

Back

Angle

Front

A figure formed by two rays with a common endpoint

Back

Distance Formula

Front

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

Back

Segment bisector

Front

a segment, ray, line, or plane that intersects a segment at its midpoint

Back

right angle

Front

an angle that measures 90 degrees

Back

Congruent

Front

Having the same size and shape

Back

Pythagorean Theorem

Front

The sum of the squares of the legs of a right triangle is equal to the square of the hypotenuse.

Back

Midpoint Formula

Front

The formula for a halfway point between two coordinates.

Back

postulate

Front

something accepted as true without proof; an axiom

Back

Angle bisector

Front

a ray that divides an angle into two congruent angles

Back

Collinear

Front

Points that lie on the same line

Back

Supplementary angles

Front

Two angles whose sum is 180 degrees

Back

Midpoint

Front

A point that divides a segment into two congruent segments

Back

Vertical Angles

Front

A pair of opposite congruent angles formed by intersecting lines

Back

obtuse angle

Front

An angle that measures more than 90 degrees but less than 180 degrees

Back

theorem

Front

A mathematical statement which we can prove to be true

Back

Segment addition postulate

Front

If B is between A and C, then AB + BC = AC

Back

Distance

Front

the length between any two points in the absolute value of the difference of the coordinates

Back

acute angle

Front

an angle that measures more than 0 degrees, but less than 90 degrees

Back

Linear Pair

Front

A pair of adjacent angles whose noncommon sides are opposite rays.

Back

Line

Front

A straight path that has no thickness and extends forever.

Back