At 3 p.m., Coretta's shadow is 1.32 meters long. Her Height is 1.61 meters. At the same time, the tree shadow is 7.29 meters long. How tall is the tree?

Solution:

We use the theory of similar triangle to solve it.

We assume the height of tree is x.

So the equation is

1.32/1.61 = 7.29/x

x = 8.89

So the tree is 8.89 meters tall