Question

One side of a triangle is half the longest side. The third side is 11 feet less than the longest side. The perimeter is

54. Find all three sides.

Answer 1

13, 15, 26

Explanation

Let one side by "x". The longest side will be 2x, and the 3rd side will be 2x-11. Since they all have to add up to 54, we can form this equation: x+2x+2x-11=54, x=13.

You plug the values back in: (13), 2(13)=26, and 2(13)-11=15.