The volumes of two spheres are 729 in3 and 27 in3

To find the radius of the spheres, we can use the formula for the volume of a sphere:

V = (4/3)πr^3

We are given the volumes of two spheres, V1 = 729 in^3 and V2 = 27 in^3.

For the first sphere (sphere 1), we have:

729 = (4/3)πr1^3

To find the radius, we can rearrange the equation:

r1^3 = (3/4)(729/π)
r1^3 = 243/π
r1 = (243/π)^(1/3)

Now, let's calculate the value of r1:

r1 = (243/π)^(1/3)
r1 ≈ 6

For the second sphere (sphere 2), we have:

27 = (4/3)πr2^3

Again, we can rearrange the equation to find the radius:

r2^3 = (3/4)(27/π)
r2^3 = 9/π
r2 = (9/π)^(1/3)

Now, let's calculate the value of r2:

r2 = (9/π)^(1/3)
r2 ≈ 2

Therefore, the radius of sphere 1 is approximately 6 inches, and the radius of sphere 2 is approximately 2 inches.