Question

Easy question, Easy Points Topic Volume Focus on question 15

Answer 1

Answer:

738π cm^3

1458π cm^3

Step-by-step explanation:

Answer 2

Answer:

738π cm^3

1458π cm^3

Step-by-step explanation:

The volume of a cylinder is V = πr^2 h, where r=radius and h=height.

a) V = πr^2 h

       = π6^2 20.5 = 36*20.5π = 738π cm^3

b) V = πr^2 h

   For this one, remember that diameter is half of radius. d = 18, r = 9.

   V = π9^2 18 = 81*18π = 1458π cm^3