7th Grade Angle Relationships

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If angle A is 30 degrees, what is the measure of its complementary angle?

Back

60 degrees (90 - 30 = 60).

Front

If angle B is 110 degrees, what is the measure of its supplementary angle?

Back

70 degrees (180 - 110 = 70).

Front

What is the sum of the measures of two supplementary angles?

Back

180 degrees.

Front

What is the sum of the measures of two complementary angles?

Back

90 degrees.

Front

What type of angle is 90 degrees?

Back

A right angle.

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

What type of angle is less than 90 degrees?

Back

An acute angle.

Front

What are vertical angles?

Back

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