Question

A rubber ball has a diameter of three inches. What is its volume?

a. 14 in3
b. 4.2 in3
c. 1.4 in3
d. 42 in3

Answer 1

Answer:

Diameter of the ball = 8 inches

Radius of the ball (r) = diameter ÷ 2 = 8 ÷ 2 = 4 inches

π = 3.14

Surface area of the ball (A) is the same as the surface area for a sphere = 4 π r² = 4 × 3.14 × 4² = 200.96 inches²

Step-by-step explanation:

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Answer 2

Using the formula of volume of sphere, the volume of the rubber ball is 14$inches^{3}$ approximately.

What is the volume of sphere?

The volume of sphere is the amount of space occupied, within the sphere.

Diameter of sphere = 3 inches

Radius of sphere = 3/2 = 1.5 inches

Volume of sphere = $\frac{4}{3}\pi r^{3}$ = $\frac{4}{3}*\frac{22}{7}*1.5^{3}$ = 14.13 $inches^{3}$

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