A tree is casting a shadow of 10 feet when the elevation of the sun is 60°. Find the height of the tree to the nearest foot.

I have a triangle rectangle that has one leg equal to 10 and the angle adjacent to the leg is 60 degrees from where we may say Tan 60 = H/10 and so H = 18 feet or 17 feet depending on the approximation.

H = 18 feet