Question

A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?

Answer 1

So, the man is 6 feet, but casts a 9 foot shadow. So, you divide 25 by 9, and then you would find it goes into it 2.8 times, so round and get 3 if you want,or keep it. And then 12, or round to 13.

Answer 2

Could you solve this using similar triangles?

6/x = 9/25
cross multiply
9x = 150

x = 16.66

Assuming it can be done this way, the tree should be about 17 feet tall