Question

If a cylinder has a radius of 6 ft and a height of 12.2 ft, what is the surface area? Use 3.14 for p.

Answer 1

Okay, So Surface Area Formula:
SA = (R²*3.14*2) + (D * 3.14 * H)

So, Lets Solve.

SA = 6² * 3.14 * 2 + 12 * 3.14 * 12.2
So:
SA = 36 * 3.14 * 2 + 37.68 * 12.2
Next:
SA = 72 * 3.14 + 459.696
Next :
SA = 226.08 + 459.696
Final:
SA = 685.776ft³