The surface area of a sphere is 7.84 in Ft ^2, what is the radius of this sphere
The surface area of a sphere is given by the formula A = 4πr^2, where A is the surface area and r is the radius.
We can rearrange this formula to solve for the radius:
r^2 = A / (4π)
Plugging in the given surface area A = 7.84 in ft^2:
r^2 = 7.84 / (4π)
To find the radius, we need to take the square root of both sides:
r = √(7.84 / (4π))
Using a calculator, we can evaluate this expression:
r ≈ 0.498 ft
Therefore, the radius of the sphere is approximately 0.498 ft.