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The lengths of the sides of a triangle are in the ratio of 5:3:4. The perimeter of the triangle is 156cm. Find the length of the longest side.

The lengths of the sides of a triangle are in the ratio of 5:3:4. The perimeter of the triangle is 156cm. Find the length of the longest side.
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the lengths of the sides of a triangle are in the ratio of 5:3:4. The perimeter of the triangle is 156cm. Find the length of the longest side.

User Santiago Bendavid
by
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1 Answer

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The longest side is 5/(5+3+4) = 5/12 of the perimeter, hence
(5/12)*156 cm = 65 cm . . . . . the length of the longest side
User Dominic Jonas
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