Question

please help me.i will mark her /his brainlist​

Answer 1

Step-by-step explanation:

$∠A + ∠B = 180 \\ 5x + 20 + 9x - 92 = 180 \\ 5x + 9x + 20 - 92 = 180 \\ 14x - 72 = 180 \\ 14x = 180 + 72 \\ 14 x = 252 \\ x = \frac{252}{14} \\ x = 18$

$∠A = 5x + 20 \\ ∠A = 5 \times 18 + 20 \\ ∠A = 90+ 20 \\ ∠A = 110$