Find the arc length of the semicircle.

The function g(x) is defined as shown. x-1, -2 g(x) = 2x+3, -1 6-x, x23

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Answer pls man im trying to get out of summer school