Week 15 HW

Front

What is the measure of a right angle?

Back

90°

Front

What is an acute angle?

Back

An angle that measures less than 90°.

Front

What is an obtuse angle?

Back

An angle that measures more than 90° but less than 180°.

Front

What are complementary angles?

Back

Two angles whose measures add up to 90°.

Front

What are supplementary angles?

Back

Two angles whose measures add up to 180°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

What is the sum of the angles in a triangle?

Back

180°.

Front

If one angle measures 40°, what is the measure of its complementary angle?

Back

50°.

Front

If one angle measures 130°, what is the measure of its supplementary angle?

Back

50°.

Front

What is the definition of an angle bisector?

Back

A ray that divides an angle into two equal parts.