Question

What is the volume of a sphere with a radius of 21 units?

Answer 1

Answer: B: 12,348π units³ which is 38,772.72 units³

Step-by-step explanation:

The formula of the volume of a sphere is V = $\frac{4}{3}$πr³

Since we know that the radius is 21, we can fill in the given numbers:

V =  $\frac{4}{3}$π(21)³

Now, the new formula is V =  $\frac{4}{3}$π(9,261) = 38,772.72

Answer 2

Answer:

B

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$πr³ ( r is the radius ), thus

V = $\frac{4}{3}$π × 21³

   = $\frac{4}{3}$π ×9261 = $\frac{4(9261)}{3}$π = 12348π units³ → B