Question

I need some help with this!

Answer 1

`A\approx 4.19\ yd^2`

Explanation:

The following formula can be used to find the volume of a sphere,

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

Where (r) represents the radius of the sphere or the distance from the center of the sphere to its outer edge. The term (
`\pi`) represents the numerical constant (
`3.1415...`). In this problem, one is given that the radius of the sphere is (1). Substitute this value into the formula and simplify to solve,

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

`A=(4)/(3)(\pi)(1)^3`

`A=(4)/(3)(\pi)1`

`A=(4)/(3)(\pi)`

`A\approx (4)/(3)*3.14`

`A\approx (12.56)/(3)`

`A\approx 4.19\ yd^2`

Answer 2

A. 4.19 yd³

Explanation:

Volume of a sphere = 4/3πr³

V = 4/3 ( 3.14) (1³)

= 4/3 ( 3.14) (1)

= 4.19 yd³