Question

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

Answer 1

Answer:

∠A = 135 and ∠B = 45

Step-by-step 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