Question

Sphere radius 7 inches what's the volume

Answer 1

Answer:

The volume of sphere is 1436.03 inches³.

Step-by-step explanation:

Given:

The radius of sphere = 7 inches.

Now, to find the volume.

So, to get the volume we put the formula:

$Volume=\frac{4}{3} \pi r^3$

Taking the value of π = 3.14

$Volume=\frac{4}{3}\times 3.14\times {7}^3$

$Volume=\frac{4}{3}\times 3.14\times 343$

$Volume=\frac{4}{3}\times 1077.02$

$Volume=\frac{4308.08}{3}$

$Volume=1436.03\ inches^3$

Therefore, the volume of sphere is 1436.03 inches³.

Answer 2

Step-by-step explanation: To find the volume of the sphere, start with the formula for the volume of a sphere.

Volume = $\frac{4}{3} \pi r^{3}$

Notice that our sphere has a radius of 7 inches so plugging into the formula, we have $(\frac{4}{3})(\pi)(7 in.)^{3}$.

Start by simplifying the exponent. (7 in.)³ is equal to 7 inches x 7 inches x 7 inches or 343 in³ so we have $(\frac{4}{3}) (343 in.^{3})(\pi)$.

Next, 4 x 343 is 1,372 which gives us $\frac{1,372\pi }{3}$. Notice that 1,372 doesn't divide by 3 so this is our final answer for the volume of the sphere.