Person is 1.3 meters tall and stands 7 meters in front of a tree and casts a shadow 1.8 meters long. how tall is the tree

One of the best approaches to address similar triangle problems is to illustrate the problem. Below is an image of how a person is standing from the tree with ΔABC ~ ΔDEC,  CE ~  BC, and DE ~  AB. 

Mathematically, we have



and working on the equation, 






Thus, the height of the tree is 6.36m.

6.36 m

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