A woman is standing 48 ft away from a tree. The woman casts a shadow of 12 feet and the tree is 27 ft tall. How tall is the woman?

use simple ratios after making a sketch

you will have 2 similar triangles

h/12 = 27/48
h = 12(27/48) = 6.75 ft tall , Wow!

I assumed she was standing at the end of the tree's shadow.