Please dibantu bagian d dan f

D) c =120°
d = 180 – 120 = 60°

f) p = 180-(56+64)
p = 180 – 120
p = 60°
q = 180 – 60 = 120°
r = 180 – 64 = 116
s = 180-(56+60)
s = 180 – 116
s = 64