Find surface area of a circular solid. A sphere with d = 10.4 yd

A = 339.8 yd^2

Step-by-step explanation:

The formula for the surface area of a sphere of radius r is:

A = 4*pi*r^2. In this case, d = 10.4 yd leads to r = 5.2 yd.

Then the surface area of this sphere is

A = 4*pi * (5.2 yd) ^2 = 339.8 yd^2