Question

8
by (8-2), 1806
-) 6x180
1080.​

Answer 1

Answer:

3) a. x=60°,b. x=140°

4)x=180°-90°=90°

y is vertically opposite to angle x so x=y hence angle y = 90°

angle z is complementary angle so angle z = 90°-30°= 60°.