Question

There is an equilateral triangle with side “2x+3”. The perimeter of the triangle
is 240cm. What is x ? What is the side of the triangle ?

Answer 1

2×3(2x-3)=240

6(2x-3)=240

12x-18=240

12x=258

x=258/12

x=21.5

the side is 46cm

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