The triangles are similar. What is the value of x? x =

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1 Answer
Jess · Jumbotron
Jan 18, 2018

#21#

Explanation:

You just need to find the ratio of lengths of one of the sides and apply it to the unknown side:

#72/24=3#

This means that the triangle on the right has sides that are 3 times the length of the smaller triangle.

#x/7=3#

#x=21#

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