Find m a. 14 b. 39 c. 51 d. 90

asked Aug 11, 2023 194k views

3 votes

Find m a. 14
b. 39
c. 51
d. 90

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2 votes

I WILL USE SUM OF INTERIOR ANGLES OF A TRIANGLE TO GET x

$(2x + 11) + (4x - 5) + 90 = 180 \\ 2x + 4x + 11 - 5 + 90 = 180 \\ 6x + 96 = 180 \\ 6x = 180 - 96 \\ 6x = 84 \\ (6x)/(6) = (84)/(6) \\ x = 14$

THE ANSWER IS OPTION a

X=14°

Massyanya answered Aug 17, 2023

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