The three sides of a triangle are consecutive integers. The perimeter is 36cm. Find the lengths of all the sides.

Question

Would help a lot if you could explain the steps.

Answer 1

If the 3 sides are x, x+1, & x+2, the the perimeter is x + (x+1) + (x+2) = 36

Then, 3x + 3 = 36 or 3x = 33 or x = 11

So, the sides are 11, 12 & 13.