Question

Can someone help me with this question

Answer 1

Measure of angle A=180- Measure of angle C + Measure of angle B
2x=180-(90+3x)
2x=180-90-3x
+3x. +3x
5x=180-90
5/5x=90/5
x=18
Measure of angle is
A= 2x
A=2(18)
A=36

Measure of angle B =
3x
3(18)
54

Simply, Measure of angle A is 36, Measure of angle B is 54 and measure if angle C is 90