r=1.3

The volume of a sphere is equal to 43 times Pi π times the radius cubed.

43⋅π⋅(radius)3

Substitute the value of the radius r=1.3 into the formula to find the volume of the sphere. Pi π is approximately equal to 3.14.

43⋅π⋅1.33

Combine 43 and π.

4π3⋅1.33

Raise 1.3 to the power of 3.

4π3⋅2.197

Combine 4π3 and 2.197.

4π⋅2.1973

Multiply 2.197 by 4.

8.788π3

Multiply 8.788 by π.

27.608316233

27.608316233

Divide 27.60831623 by 3.

9.20277207

Find the Volume sphere (1.3)