Question

M<1 = 36, m<4 = 49, m<6 = 131. find m<9

a. 36
b. 242
c. 144
d. 216

Answer 1

m∠9 = 144

Explanation:

measure of straight angle FCE=180

angle FCE=measure of angle 9 + measure of angle 1

180=m∠9+36

180-36=m∠9

m∠9=144

Answer 2

C.144

Explanation:

Angle 1 and 9 are supplementary angles so angle 1+9=180 degrees.

Substitute it, 36+angle 9=180

Use the subtraction property of equality to get angle 9 = 144

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