Now how do u find the approximate area of a circle

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?

Can someone me with this? i’m not sure what to put for my equations.

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?