The tree in your friend's yard casts a shadow that is 27 feet long. Your friend is 5 feet tall and casts a shadow that is 4.5 feet long. What is the height of the tree?
Set the equation up as a proportion, where x = the height of the tree in feet 27/x = 4.5/5 cross multiply (4.5)(x) = (27)(5) (4.5)(x) = 135 divide the entire equation by 4.5 to isolate x 135/4.5 = 30 x = 30 the tree is 30 ft tall
