Question

*PLS HELP!!*
{The Picture Is In The Attachment}​

Answer 1

∠A = 135 and ∠B = 45

Explanation:

Supplementary angles add up to 180

∠A = 3*∠B

∠A + ∠B = 180

3∠B + ∠B = 180

4∠B = 180

∠B = 180/4

∠B = 45

∠A = 3 *45 = 135