A cylinder has a volume 45pi and radius 3. What is it’s height?

the answer is 15

Step-by-step explanation:

Given data:

Volume V = 45 π and radius  

r = 3 units The formula for the volume of the cylinder is  V = B · H

Base of the cylinder is:

B = r² π = 3² π = 9 πFrom the formula  V = B · H we get H:H = V / B = 45 π / 9 π = 5 units

H = 5 units

The height is 5

Step-by-step explanation:

Given data:

Volume V = 45 π and radius  r = 3 units

The formula for the volume of the cylinder is  V = B · H

Base of the cylinder is:

B = r² π = 3² π = 9 π

From the formula  V = B · H we get H:

H = V / B = 45 π / 9 π = 5 units

H = 5 units

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: