SOLUTION: The perimeter of a triangle is 81 cm. The smallest side is 7cm.shorter than the medium side. The medium side is 4 cm.shorter than the longest side. Find the lengths of the three si
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Question 291021: The perimeter of a triangle is 81 cm. The smallest side is 7cm.shorter than the medium side. The medium side is 4 cm.shorter than the longest side. Find the lengths of the three sides.
Answer by Greenfinch(383) (Show Source): You can put this solution on YOUR website!
Shortest side is X, medium side is X + 7, longest side is X + 11
perimeter is X + (X + 7) + ( X + 11) =3X + 18 = 81
So 3X= 63
X = 21, other sides are 28 and 32
perimeter is 21 + 28 + 32 = 81 so it checks
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