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12-11-2018
Mathematics

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the sides of a triangle are in the ratio 3: 4: 5 what is the lenghth of each side if the perimeter of the triangle is 90cm

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wegnerkolmp2741o wegnerkolmp2741o

12-11-2018

3x+4x+5x=90

combine like terms

12x = 90

divide by 12

x = 7.5

sides: 3(7.5) ,4(7.5) ,5(7.5)

22.5, 30, 37.5

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