What is the surface area of a sphere with a circumference of 50 ft?

Firstly, calculate for the radius from the given circumference. The equation for circumference (C) is,

C = 2πr; r = C/2π

Substituting the given circumference,

r = 50ft/2π = 25/π ft

The area for the solving the surface area of a sphere is calculated through the equation,

SA = 4πr² = 4π (25/π) ² = 795.77 ft²

Therefore, the surface area is approximately 795.77 ft².