SOLUTION: A triangle has sides 3cm, 5cm and 7 cm. The longest side of a similar triangle is 12 cm. Find the length of the shortest side.

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Question 1116573: A triangle has sides 3cm, 5cm and 7 cm. The longest side of a similar triangle is 12 cm. Find the length of the shortest side.
Answer by ikleyn(52780)   (Show Source): You can put this solution on YOUR website!
.
From similarity, you have this proportion


 = ,


where x is the unknown shortest side of the larger triangle.


From the proportion,  x =   centimeters.


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