Question

The second side of a triangle is two centimetres more than the first. The third side is three centimetres less than twice the length of the first. The perimeter of the triangle is 19cm. Find the lengths of the three sides of the triangle. *Show working out

Answer 1

Answer:

Let length of first side be x

' ' ' ' ' ' second side be 2cm+x

' ' ' ' ' ' third side be 2x-3

=> x+2+x+ 2x-3 =19

=> x+x+2x=19+3-2

=> 4x=20

=> x=5

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