SOLUTION: The lengths of the sides of a triangle are in an extended ratio of 7:9:10. The perimeter of the triangle is 78 cm. What is the length of each side?

Question 844747: The lengths of the sides of a triangle are in an extended ratio of 7:9:10. The perimeter of the triangle is 78 cm. What is the length of each side?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If we say that the longest side measures cm,
the lengths of the sides, in cm are , and .
That makes the perimeter, in cm equal to

Solving

Then ,
, and
.
So the lengths of the sides are
, , and .
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