Answer:
C= 50°+ 31°( exterior angle)
C=81°
D+45°+96°=180°(the sum of angles in a triangle)
D=180-45°-96°
D=39°
h+52°=76°( exterior angle)
h=76°-52°
h=24°
f+32°=66°( exterior angle)
f=66°-32°
f=34°
r+45°+35°=180°(the sum of angles in a triangle)
r=180-45°-35°
r=100°
n+33°=80°( exterior angle)
n=80°-33°
n=47°
