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Triangle JKL is similar to TPD.  Find the length of side b.

 

 Feb 25, 2021
 #1
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To find side b, you have to find the ratio between both triangles.

 

TD/JK=9/5 or 1.8

 

A common error here is that you multiply side DP by the ratio.

 

What you actually have to do here is divide side DP by the ratio

 

DP=6, so 6/1.8

 

6/1.8= \(3.\overline3\)

 Feb 25, 2021
 #2
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9 / 6 = 5 / b

 Feb 25, 2021

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