Geometry Semester 1 Exam Review

Front

What do all the angles of a triangle add up to?

Back

180°

Front

What kind of angles are two angles that add up to 90°?

Back

Complementary

Front

What is the measure of a right angle?

Back

90°

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

A part of a line that has one endpoint and extends infinitely in one direction.

Front

What is a line?

Back

A straight path that extends infinitely in both directions.

Front

What are angles that add up to 180° called?

Back

Supplementary angles.

Front

What is a linear pair?

Back

Two adjacent angles that are supplementary.

Front

What is the sum of the interior angles of a polygon with n sides?

Back

(n-2) × 180°.

Front

What is a congruent angle?

Back

Angles that have the same measure.