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Mathematics 13 Online
OpenStudy (anonymous):

The lengths of the sides of a triangle are in the ratio 5:6:7. Describe the length of the longest side if the perimeter is less than 54 cm.

OpenStudy (anonymous):

has to be an inequality

OpenStudy (anonymous):

Longest side is 7/18ths the perimiter, so if perimiter is less than 54 then the longest side is less than 7/18 times 54 which is 21.

OpenStudy (anonymous):

In other words, the longest side < 21cm

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