Question

URGENT
What is the value of y?
A.72°

B.36°

C.54°

D.108°​

Answer 1

72 + 2y = 180

2y = 108

y = 108/2

y = 54

C. 54

Answer 2

C

Explanation:

Sum of three angles of triangle = 180

72 + y + y = 180 {add like terms}

72 +2y = 180 {Subtract 72 from both sides}

2y = 180 - 72

2y = 108 {divide both sides by 2}

y = 108 / 2

y = 54°