a parking meter that is 1.6m tall costs a shadow of 3.6m long. at the same time, a tree costs a shadow 9m long. which proportion could be used to fin the height of the tree?
well, 1.6m:3.6m, so then for 9m, we would divide 1.6 by 3.6, which is 0.444444... So, we multiply 9 by 0.444444, which is 3.9999996. We can round this to 4, so 9m:4m. The 9m tall tree casts a shadow of 4m.
