Complementary Angles

Front

What are complementary angles?

Back

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

Front

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

Back

The complementary angle would measure 60 degrees (90 - 30 = 60).

Front

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

Back

The sum of the measures of two complementary angles is always 90 degrees.

Front

If one angle is 45 degrees, what is the other angle if they are complementary?

Back

The other angle would be 45 degrees (90 - 45 = 45).

Front

How do you find the missing angle when given one angle in a complementary pair?

Back

Subtract the given angle from 90 degrees to find the missing angle.

Front

What is the measure of the complementary angle to 75 degrees?

Back

The complementary angle would measure 15 degrees (90 - 75 = 15).

Front

Can two angles be complementary if both are greater than 45 degrees?

Back

No, two angles cannot be complementary if both are greater than 45 degrees, as their sum would exceed 90 degrees.

Front

If two angles are complementary and one angle is represented as x, what is the expression for the other angle?

Back

The other angle can be expressed as (90 - x).

Front

What is the relationship between complementary angles and right angles?

Back

Complementary angles together form a right angle, which measures 90 degrees.

Front

If angle A is 25 degrees, what is the measure of angle B if they are complementary?

Back

Angle B would measure 65 degrees (90 - 25 = 65).