document.write( "Question 1128360: The lengths of the sides of a triangle are in the extended ratio 4 ​: 7 ​: 9. The perimeter of the triangle is 80 cm. What are the lengths of the​ sides? \n" ); document.write( "
Algebra.Com's Answer #744817 by josgarithmetic(39617)\"\" \"About 
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factor \"80%2F%284%2B7%2B9%29=80%2F20=4\"\r
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\n" ); document.write( "\n" ); document.write( "Sides lengths are 16 : 28 : 36.
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