Question

AJUDAAAAAAAAAA GEOMETRIA PLANA?

d870340426b07a994a8ad02cc7ddb47e.docx

Answer 1

Triângulo AHC
â=y
h=90°
c=50°

a+h+c=180°
y+90+50=180
y=180-90-50
y=180-140
y=40°

triângulo AHB
â=x
b=30
h=90
a+b+h=180°
x+30+90=180
x=180-30-90
x=180-120
x=60°