Question

12. 21 and 22 are supplementary. The measure of 1 is three times the measure of 2. What is m2?

a. 30°
b. 45°
c 54
d.55
e. 135

Answer 1

Answer:

The measure of angle 2 is 45 degrees

Explanation:

Mathematically, when two angles are supplementary, the sum of these angles will be equal to 180 degrees

Let the measure of angle 2 be x

The measure of angle 1 is 3 times this and that will be 3 * x = 3x

The sum of both will be 180

x + 3x = 180

4x = 180

x = 180/4

x = 45