The perimeter of a triangle is 90cm. The lengths of the sides of the triangle are in the ratios 3:5:7 work out the length of the longest side of the triangle
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3x + 5x + 7× = 90
or,15x=9
or,x=6
so longest side=7×6cm=42cm
or,15x=9
or,x=6
so longest side=7×6cm=42cm
Answered by
12
hope it helps u
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