CPM Homework Help : A2C Problem 8-39

While trying to measure the height of a tree, Julie noticed that a $3.5$ -foot post had a $4.25$ -foot shadow. If the tree’s shadow is $100$ feet long, how tall is the tree?

Hint:

Draw and label a picture.

More Help:

The ratio between the height of the object and the length of the shadow will be the same for both the tree and the post.