Answer:
πr²h
= π×12²×8
= 1152π
= 3619.1147369354 feet³
Step-by-step explanation:
Let smaller angle be x
Let larger angle be 20 + x
Sum of two supplementary angles = 180°
x + 20+ x = 180°
2x + 20 = 180
2x = 180-20 = 160
x = 160/2 = 80
Smaller angle = x = 80°
Larger angle = 20 + x = 20 + 80 = 100°
I hope it is helpful:D
Answer:
The first one
Step-by-step explanation:
Because you mulitply 4 by 5 to get 20
