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Geometry Vocab > Vocab unit 2 > Flashcards

Vocab unit 2 Flashcards

1
Q

Point

A

A location in space that has no size and is named with a capital letter

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2
Q

Ray

A

A part of a line that starts at an endpoint and extends forever in one direction

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3
Q

Plane

A

A flat surface that has no thickness and extends forever

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4
Q

Supplementary Angles

A

TWO angles whose sum in 180 degrees

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5
Q

Obtuse angle

A

An angle that’s greater than 90 degrees

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6
Q

Acute angle

A

An angle that is less than 90 degrees

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7
Q

Angle bisector

A

A ray (line or plane) that divides an angle into 2 congruent angles

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8
Q

Line

A

A straight path that has no thickness an extends forever in two opposing directions

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9
Q

Coplanar points

A

Points that lie on the same plane

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10
Q

Straight angle

A

An angle that measures 180

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11
Q

Linear pair

A

A pair of adjacent angles that make a line

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12
Q

Right angle

A

an angles that measures 90 degrees

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13
Q

Opposite interior angles

A

The angles of the triangle that are not adjacent to a given exterior angle

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14
Q

Collinear points

A

Points that lie on the same line

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15
Q

Vertical angles

A

Two nonadjacent angles whose sides form two pairs of opposite rays.

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16
Q

Complimentary Angles

A

TWO angles whose sum is 90 degrees

17
Q

Adjacent Angles

A

Two angles that share a common vertex and side, but have NO common interior points

18
Q

If point Y is between X and Z, then XY + YZ = XZ

A

SEGMENT addition Postulate

19
Q

If point S is in interior of <PQR, then m<PQS + m<SQR = m<PQR

A

ANGLE addition postulate

20
Q

Segments that have the SAME length

A

Congruent segments

21
Q

Length between 2 points

A

Distance

22
Q

A figure formed by two rays with a common endpoint

A

Angle

23
Q

Angles that have the same measure

A

Congruent angles

24
Q

Part of a line with 2 endpoints

A

Segment

25
Q

Exterior angle theorem

A

The measure of the exterior angle of a triangle is equal to the sum of the two opposite (remote) interior angles

26
Q

Has a common side and a common vertex

A

Adjacent angles

Geometry Vocab (1 decks)

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