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

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

User Craig T
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1 Answer

17 votes
17 votes

Answer:

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

User YAHsaves
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