Question

Please solve question 7 part b,c

Answer 1

7b
x+45°+60°=180°
x=180°-105°
x=75°
x+y=180° (linear pair)
y=180°-75°=105°

40°+y+z=180°
z=180°-145°=35°

7c
y=20°{vertical opposite angle u=v}
u=v=180°-20°=160°
90°+x+20°=180°
x=180°-110°=70°