Geometry Vocabulary Review Flashcards

1
Q

All sides are the same length

A

Equilateral Triangle

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2
Q

Two sides are the same length

A

Isosceles Triangle

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3
Q

All sides are different lengths

A

Scalene Triangle

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4
Q

One angle that is greater than 90 degrees

A

Obtuse Triangle

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5
Q

All angles are less than 90 degrees

A

Acute Triangle

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6
Q

One angle that is equal to 90 degrees

A

Right Triangle

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7
Q

A plane figure that has three straight sides and three angles.

A

Triangle

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8
Q

A triangle that has one angle that is greater than 90 degrees

A

Obtuse angle

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9
Q

A angle that has one angle that is equal to 90 degrees

A

Right angle

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10
Q

A triangle that has all angles that are less than 90 degrees

A

Acute angle

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11
Q

A straight line - two rays pointing in the opposite directions and it equals 180 degrees

A

Straight angle

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12
Q

Lines that form square corners when they intersect, they form right angles

A

Perpendicular lines

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13
Q

Part of a circle that represents an angle between two intersecting lines.

A

Arc

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14
Q

The point where two rays meet

A

Vertex

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15
Q

Two angles that form a right angle are called ______ angles that equal 90 degrees

A

Complementary angles

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16
Q

Two angles combine to form a straight angle

A

Supplementary angles

17
Q

Having the same measurement

A

Congruent

18
Q

Two non-adjacent angles are formed by two intersecting lines (They are congruent)

A

Vertical angles

19
Q

____ angles are any two angles that share a common side and a vertex

A

Adjacent angles

20
Q

Lines that will never cross and are the same distance apart and may go on forever

A

Parallel Lines

21
Q

When lines cross

A

Intersecting lines

22
Q

A starting point that extends in one direction that goes on without end

A

Ray

23
Q

A collection of points that extends in both directions without end

A

Line

24
Q

A part of line with two endpoints

A

Line Segment