Question

Find the measure of angle A.
A
9x+6
4x + 6
m/A=

Answer 1

angle A=30°

Explanation:

`9x + 6 + 4x + 6 + 90 = 180 \\ 13x + 102 = 180 \\ 13x = 180 - 102 \\ 13x = 78 \\ (13x)/( 13) = ( 78)/(13) \\ x = 6 \\ 4x + 6 = a \\ 4(6) + 6 = a \\ 24 + 6 = a \\ 30 = a`