Geometry homework

Question

What is the amount of snow that can be placed in a globe if it is 5.1 inches wide?

A. 16.46 in^3

B. 65.45 in^3

C. 555.37 in^3

D. 69.42 in^3

Answer 1

Leah:

A globe is a sphere. Volume of sphere = (4/3)*pi*r³ where r is the radius.

Since the globe in 5.1 inches wide, the radius is 2.55 inches.

Use r = 2.55 in and solve

Answer 2

Volume of a sphere is V = 4/3 pi r^3

diameter is 5.1 so radius is 2.55

plugging and doing the math the answer is

69.42 in^3

or answer D