1. Measuring Angles

Which of the following pairs of angles are supplementary to each other?

Which angle is supplementary to $4°$?

Find the complement & supplement of a $45°$ angle.

Complement: ____

Supplement: ____

Convert each radian measure to degrees.

5π/4

Convert each radian measure to degrees.

8π/3

Convert each radian measure to degrees.

-11π/18

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

39°

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

42.5°

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

139° 10'

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

174° 50'

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

64.29°

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

85.04°

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

56° 25'

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

122° 37'

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

-47.69°