I think I'll be 6/13= 0.4615
The perimeter of a triangle is the sum of its sides. So, we have

We have an exact value for the perimeter, and variable expressions for the sides. Let's substitute the formula above with what we're given:

If you divide both sides by 12, you have

So, the lengths of the sides are



20 and 3 4ths happy to help
this one would also be the third option