The third side of an isosceles triangle is 8 inches shorter than the other two sides the perimeter of the triangle is 70 inches find the length of each side

If we add 8 inches to the third side, then the triangle will be equilateral, and the perimeter will be 70+8=78 inches.

The sides of a 78-inch equilateral triangle is 78/3=26 inches.

So the equal sides of the isosceles triangle are both 26 inches, while
the third side is 26-8=18 inches.

Check: 18+26+26=70 inches   ✔