Question

Dylan created a hemisphere model for his class science project.The diameter to the model was 12.2ft.What is the volume of model?

Answer 1

Semisphere area is found by

Volume V = (1/2)•(4/3)• (π•r^3)

Diameter of the mode is

D = 2•r = 12.2 ft

Then

r= 12.2/2 = 6.1 ft

Then now find V

V = (4/6) •(π• (6.1^3) = (4/6)•π•( 226.981)

V= 151.3207 • π= 475.38 cubic feets

THEN ANSWER IS

OPTION C) 475.4 ft^3