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

Dylan created a hemisphere model for his class science project.The diameter to the-example-1
User Williambq
by
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1 Answer

23 votes
23 votes

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