Respuesta :

Answer:

8.6

Step-by-step explanation:

First look at the small triangle and find the angle that is common between the big and small triangle.

TanФ=Opp/Adj

TanФ=2/3

now look at the big triangle,

again TanФ= h/13

we know tanФ=2/3,

∴2/3=h/13

(2/3)*13=h

h= 8.6

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