Review of Angles for Summative

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that are formed when two lines intersect. The sum of the angles in a linear pair is always 180 degrees.

Front

Name a pair of angles that form a linear pair.

Back

Angles 9 and 10.

Front

What is the value of x if the angles are supplementary and one angle is 70 degrees?

Back

x = 110 degrees.

Front

What is the value of x if the angles are complementary and one angle is 37 degrees?

Back

x = 53 degrees.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

Name a pair of vertical angles.

Back

Angles 7 and 9.

Front

What is the value of x if two angles are vertical and one angle measures 72 degrees?

Back

x = 72 degrees.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

If one angle in a triangle is 90 degrees, what are the other two angles?

Back

The other two angles must sum to 90 degrees.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.