Question 217354
Isosceles triangles have 2 equal sides, so we will make the equal sides be x
the base = x - 3
perimeter is all sides added together;

x + x + x-3 = 36
3x - 3 = 36
3x = 39
x = 13

So the two equal side = 13
base;
 x-3
13-3=10

so the sides will be;
13, 13, 10
:)