marlo who is standing near a tree during the day measures her shadow to be 19 inches long. A nearby trees shadow is 66.5 inches long. if marlo is 5.1 feet tall, how tall is the tree in feet?
Use a ratio system
5.1 ft is to 19 inches as tree h is to 66.5
5.1/19 = h / 66.5
5.1/19 * 66.5 = h
h= 17.85 ft tall