Question

Angles X and Y are supplementary. Angle X measures 116.89°, and angle Y measures (m − 10)°. Find m∠Y.

63.11°
73.11°
106.89°
126.89°

Answer 1

To find the measure of angle Y, subtract the given angle X from 180 degrees.

Step-by-step explanation:

To find the measure of angle Y, we can use the fact that angles X and Y are supplementary, which means they add up to 180 degrees.

Given that angle X measures 116.89°, we can set up the equation: X + Y = 180.

Substituting the given value for angle X, we have 116.89 + Y = 180.

Solving for Y, we subtract 116.89 from both sides: Y = 180 - 116.89 = 63.11°.