Question

ZA and ZB are supplementary angles. If mZA = (5x + 25)° and m

ZB = (x + 17)°, then find the measure of ZA.

Answer 1

MZA = 140

Explanation:

5x+25°+ x + 17°=180°(Supplimentary Angles)

6x + 42° =180°

6x =180 - 42

6x=138

(divide by 6 both sides)

X= 23

substitution X into the given angle

5x +25

5(23)+25

115+25

140