help me please

Question

A tree casts a 24-ft shadow. A boy who is 5 feet tall is standing near the tree casting a 20-ft shadow. They form similar triangles. How tall is the tree?

Answer 1

You can work this problem using proportions.

 

h = height of tree

 

h/24 = 5/20

 

h = 24(5/20) = 6

 

h = 6 ft