The formula to calculate the surface area of a cylinder is given by:
Surface Area = 2Ï€r^2 + 2Ï€rh
Given that the radius (r) is 7 and the height (h) is 8, we can substitute these values into the formula:
Surface Area = 2(3.14)(7)^2 + 2(3.14)(7)(8)
Simplifying this expression, we get:
Surface Area = 2(3.14)(49) + 2(3.14)(7)(8)
Surface Area = 2(153.86) + 2(3.14)(7)(8)
Surface Area ≈ 307.72 + 351.68
Surface Area ≈ 659.4
Therefore, the surface area of the cylinder is approximately 659.4 square units.