Question

PLEASE HELP!!!!! I HAVE A DEADLINE !!!!

Bob built a rocket that has a radius of 2 feet. Find the volume of the whole rocket he built. Round your answer to the nearest tenth. Show all of your work!!!

Answer 1

V_rocket = 44
`\pi` ft^3 = 138.2 ft^3

Explanation:

Volume of cone

V_cone = (1/3)*(
`\pi`*(radius^2))*h

radius = 2ft

h = height of the cone = 3 ft

pi = 3.1416

V_cone = 4
`\pi` ft^3

Volume cylinder

V_cylin = (
`\pi`*(radius^2))*h_cyl

h_cyl = height of the cylinder = 10 ft

V_cylin = 40
`\pi` ft^3

Volume rocket

V_rocket = V_cone + V_cylin = 4
`\pi` ft^3 + 40
`\pi` ft^3

V_rocket = 44
`\pi` ft^3 = 138.2 ft^3