Question

in a triangle the longest side is double the shortest side and the third side is 3 cm less than the longest sides if the perimeter of the triangle is 57 cm find all sides of the triangle

Answer 1

let the longest side be 2x
and the shortest side be x
and the third side be 2x-3
so 2x+x+2x-3=57
5x=60
x =12
so the sides of the triangle are 24, 12, 21

Answer 2

The following are the steps in picture and the answer is:. 30cm, 15cm and 27cm