A woman 5ft 6in tall stands so that the tip of her shadow coincides with the tip of the shadow of a tall tree. The woman stands 18 ft from the tip of her shadow and 100 ft from the base of the tree. How tall is the tree?

A vertical pole 10 meters high casts a shadow 8 meters long. At the same time, a nearby tree casts a
shadow 40 meters long. Find the height of the tree in meters.