Geometry Semester 1 Vocabulary

Match the Term to its definition:

Complementary Angles

• Two angles whose measures add up to exactly 90 degrees.

• Two angles whose measures add up to exactly 180 degrees.

• A pair of angles which have the same orientation at different points of intersection

• Two angles which share a common vertex and a common side.

Match the Term to its definition:

Supplementary Angles

• Two angles whose measures add up to 90^o

• Two angles with a common vertex and a common side

• Two angles whose measures add up to 180^o

• Non adjacent angles formed by intersecting lines.

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Vertical Angles

• Two angles which share a common vertex and a common side.

• Non-adjacent angles formed by intersecting lines

• A pair of Adjacent Angles whose non-common sides are opposite rays

• Two angles whose measures add up to exactly 180 degrees

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Adjacent Angles

• Two angles whose measures add up to exactly 180 degrees

• Two angles whose measures add up to exactly 90 degrees

• Two angles with a common vertex and a common side

• Non adjacent angles formed by intersecting lines.

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Linear Pair

• Adjacent Angles whose non-common sides are opposite rays.

• Non-adjacent angles formed by intersecting lines

• Two angles whose measures add up to exactly 90 degrees.

• Two angles whose measures add up to exactly 180 degrees.

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Ray

• A part of a line with one distinct endpoint that extends infinitely in one direction.

• A piece of a line with two distinct endpoints.

• Two angles with a common vertex and a common side

• Two noncollinear rays which share a common endpoint

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Line Segment

• A part of a line with one distinct endpoint that extends infinitely in one direction.

• A piece of a line with two distinct endpoints.

• Two angles with a common vertex and a common side

• Two noncollinear rays which share a common endpoint

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Angle

• A part of a line with one distinct endpoint that extends infinitely in one direction.

• A piece of a line with two distinct endpoints.

• Two angles with a common vertex and a common side

• Two noncollinear rays which share a common endpoint

Match the term to its definition

Skew Lines

• A part of a line with one distinct endpoint that extends infinitely in one direction.

• Coplanar lines which do not intersect

• Non-coplanar lines which do not intersect

• Two noncollinear rays which share a common endpoint

The shape shown is best described as:

• Convex Decagon

• Concave Decagon

• Convex Dodecagon

• Concave Dodecagon