Question

Sphere radius 7 inches what's the volume

Answer 1

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

Volume =
`(4)/(3) \pi r^(3)`

Notice that our sphere has a radius of 7 inches so plugging into the formula, we have
`((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
`((4)/(3)) (343 in.^(3))(\pi)`.

Next, 4 x 343 is 1,372 which gives us
`(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.

Answer 2

The volume of sphere is 1436.03 inches³.

Explanation:

Given:

The radius of sphere = 7 inches.

Now, to find the volume.

So, to get the volume we put the formula:

`Volume=(4)/(3) \pi r^3`

Taking the value of π = 3.14

`Volume=(4)/(3)* 3.14* {7}^3`

`Volume=(4)/(3)* 3.14* 343`

`Volume=(4)/(3)* 1077.02`

`Volume=(4308.08)/(3)`

`Volume=1436.03\ inches^3`

Therefore, the volume of sphere is 1436.03 inches³.