The volume of a sphere is 288π ft3. What is the radius of the sphere? Use the formula V = 4 3 πr3 to find your answer.
The volume formula of a sphere is:
V = \(\frac{4}{3}\)\(\pi\)r³
Given:
V = 288\(\pi\) ft³
Find: Radius
Plug them in!
288\(\pi\) = \(\frac{4}{3}\)\(\pi\)r³
Divide by \(\pi\) on either sides to cancel them out
\(\frac{288 \pi }{ \pi }\) = \(\frac{4}{3}\)r³
288 = \(\frac{4}{3}\)r³
Multiply by 3
228 × 3 = \(\frac{4}{3}\) × 3 × r³
3 and 3 cancels out
864 = 4r³
Divide by 4
\(\frac{864}{4}\) = \(\frac{4r^3}{4}\)
4 and 4 cancels out
216 = r³
Take the cube root
\(\sqrt[3]{216}\) = \(\sqrt[3]{r^3}\)
6 ft is the length of the radius
Answer:
6 cm is the length of the radius
Step-by-step explanation:
The volume formula of a sphere is:
V = r³
Given:
V = 288 ft³
Find: Radius
Plug them in!
288 = r³
Divide by on either sides to cancel them out
= r³
288 = r³
Multiply by 3
228 × 3 = × 3 × r³
3 and 3 cancels out
864 = 4r³
Divide by 4
=
4 and 4 cancels out
216 = r³
Take the cube root
=
6 cm is the length of the radius