S = length of the short side in cm. Since the triangle has three sides:
S + (S + 15) + (S + 15) = 120
Solve for S.
I hope this helps. Thanks for asking
One side of an isosceles triangle is 15 cm shorter than the other 2 sides. The perimeter is 120 cm. How long are the sides of the triangle?
4 answers
52.5
47.5
47.5