It is known that the circumference of an isosceles triangle is 30cm, and the length of one side is twice the length of the other side Length of each side

It is known that the circumference of an isosceles triangle is 30cm, and the length of one side is twice the length of the other side Length of each side

Let X be the waist
One side is twice as long as the other
When the bottom edge is 2x
X + x = 2x, no triangle
So the bottom is 1 / 2x
1/2x+2x=30
x=12,1/2x=6
So perimeter = 12 + 12 + 6 = 30
The waist length is 12cm and the bottom edge is 6cm