Question

what is the volume of this sphere?
round your answer to the nearest hundredth.
78 ft
cubic feet

Explanation:

Step1: Find the radius

The diameter is 78 ft, so radius $r = \frac{78}{2} = 39$ ft.

Step2: Apply volume formula for sphere

Volume formula: $V = \frac{4}{3}\pi r^3$. Substitute $r = 39$:
$V = \frac{4}{3}\pi (39)^3$

Step3: Calculate the value

$39^3 = 39×39×39 = 59319$
$V = \frac{4}{3}\pi×59319 = 4×\pi×19773 = 79092\pi ≈ 79092×3.14159265 ≈ 248474.98$

Answer:

248474.98