Using similarity solve for x? Show all work

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1 Answer
Mar 7, 2018

#x = 15# cm

Explanation:

Let's look at where our right angles are. The big right triangle has a hypotenuse of #25# cm and a leg measuring #x#. One of the smaller triangles has a hypotenuse measuring #x# and a leg measuring #9 cm#. Thus

#x/9 = 25/x#

#x^2 = 225#

#x = 15#

Hopefully this helps!