Question

Gmn yaa caranya mengerjakannya?

Answer 1

A). x=180°-27°-35°=118°

b). x=26°, y=180°-26°-63°=91°

c).
2x+40=x+80
2x-x=80-40
x=40

y=180°-(x+80)=180°-(40+80)=180-120=60°

d). x=180-102=78°

e).
5x+80=180
5x=180-80
5x=100°
x=100/5=20°
7y=180-5x=180-100=80°
y=80/7=11 3/7