An isosceles triangle has two long sides and one short side.the short side is half the length of along side. If the perimeter of the triangle is 15 cm, the length of the short side.

Answer 1

short side length=s
so
perimeter=s + 2 s + 2 s = 5 s = 15
s = 15 / 5

Answer 2

L = 2 s

L + L + s = 15 cm ... 2s + 2s + s = 15 cm ... s = ?

Answer 3

Do it

Answer 4

Let the short side be=X. PERIMETER=X +2X+ 2X=5X=15. 15/5