The surface area of a cylinder is calculated using the following formula:
Surface Area = 2Ï€r^2 + 2Ï€rh
Where r is the radius and h is the height of the cylinder.
Given:
Radius (r) = 7 yards
Height (h) = 8 yards
Approximation of pi (Ï€) = 3.14
Plugging in the values:
Surface Area = 2 * 3.14 * 7^2 + 2 * 3.14 * 7 * 8
Surface Area = 2 * 3.14 * 49 + 2 * 3.14 * 56
Surface Area = 2 * 153.86 + 2 * 175.84
Surface Area = 307.72 + 351.68
Surface Area = 659.4
Therefore, the surface area of the cylinder is 659.4 square yards.