1. Measuring Angles

If the measure of one angle is $84°$, what is the measure of its complementary angle?

Find the measure of each marked angle. In Exercises 19–22, m and n are parallel. See Examples 1 and 2 .

Convert each degree measure to radians. If applicable, round to the nearest thousandth. See Example 1(c).

122° 37'

Which of the following pairs of angles are supplementary angles?

Convert each radian measure to degrees. See Examples 2(a) and 2(b). 15π

In each figure, there are two similar triangles. Find the unknown measurement. Give any approximation to the nearest tenth.

Find the measure of (a) the complement and (b) the supplement of an angle with the given measure. See Examples 1 and 3. 14° 20'

In each figure, there are two similar triangles. Find the unknown measurement. Give approximations to the nearest tenth.

The measures of two angles of a triangle are given. Find the measure of the third angle. See Example 2.

29.6° , 49.7°

Find the measure of each marked angle. See Example 2.

Give an expression that generates all angles coterminal with an angle of π/6 radian. Let n represent any integer.

Find the measure of each marked angle.

Convert each degree measure to radians. If applicable, round to the nearest thousandth. See Example 1(c).

-47.69°

Find the measure of each marked angle. See Example 2.

Find the measure of each marked angle. See Example 2 complementary angles with measures 3𝓍 ― 5 and 6𝓍 ― 40 degrees