Question

The measure of Angle B is 68° what is the measure of it supplementary angle

a. 22°
b. 90°
c. 112°
d.180°

Answer 1

Hi

A = 180º-B
A = 180º-68º
A = 112º

Answer: c) 112º

Answer 2

"Supplementary angles" means two angles that add up to 180°.

(Any angle) + (its supplement) = 180° .

(Angle B) + (its supplement) = 180° .

(68°) + (its supplement) = 180°

Subtract (68°) from each side: Its supplement = 180° - 68°

= 112° .