Question

A manhole measures 3' 4" in diameter. What is the area of a metal cover for the manhole, assuming a one-inch overhang around the circumference of the cover?

Answer 1

I drew the entire problem. The final answer would be 441pi in²

I highly advise you to look at how it could work by looking at the drawing. Hope this helps :)

The blue line is the 1 inch overhang, and I add two the the diameter to get the full diameter including the overhang