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Vvv Please help vvv

Find the value of x.

Vvv Please help vvv Find the value of x.-example-1
User Nachi
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x=15. This is the Altitude theorem which is Altitude/Part = Altitude/Other part. In this question you would set up the proportion 9/X = X/25 and multiply cross products to get 225=X^2. Then you undo X^2 by doing the square route of 225 and then you get 15 as the final answer.
User Rob Levine
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