Question

If the number of square cm in the surface area of a sphere is equal to the number of cubic cm in its volume then find the diameter of the sphere

Answer 1

4
$4\pi x {}^{2} = \frac{4}{3} \pi \: x {}^{2} \\ \frac{4}{3} x = 4 \\ = > x = 3 \\ dameter = 6cm$