Write a proportion and solve. What is the height of each tree?

Answer:
Step-by-step explanation:
I used trig because I'm not quite sure what they mean by proportion so I have done:
[tex]tan^{-1}(\frac{9.8}{18.3} ) = 28.17 degrees (rounded)\\ tan(28.17)*32.9 = 17.62 m high\\[/tex]