Are you sure they arenâ€™t odd, because consecutive evens would add up to be an even number?.....anyway:

x = one side

x + 2 = second side

x + 4 = third side. {sides are consecutive even numbers, which increase by 2}

To find perimeter of a triangle, add up all sides.

x + x + 2 + x + 4 = 63 {added all sides and set equal to 63}

3x + 6 = 63 {combined like terms}

3x = 57 {subtracted 6 from each side}

x = 19 {divided each side by 3}

x + 2 = 21 {substituted 19 for x}

x + 4 = 23 {substituted 19 for x}

19, 21,and 23 are the 3 sides

- Algebra House

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