Answer:
1. 37699.1
2. 14.1
3. 9202.8
4. 1734.2
Step-by-step explanation:
1.
radius is 20
height is 30
π * 20^2 * 30 = 37699.08
Rounded to nearest tenth is 37699.1
2.
radius is 1.5
height is 6
(1/3) * π * 1.5^2 * 6 = 14.13
Rounded to nearest tenth is 14.1
3.
radius is 13
(4/3) * π * 13^3 = 9202.76
Rounded to the nearest tenth is 9202.8
4.
There is a cone and a cylinder
cone:
radius is 6
height is 10
(1/3) * π * 6^2 * 10 = 376.99
Rounded to the nearest tenth is 377
cylinder:
radius is 6
height is 12
π * 6^2 * 12 = 1357.16
Rounded to the nearest tenth is 1357.2
Add them together
377 + 1357.2 = 1734.2
