The perimeter of the larger triangle is 55
Here, we want to get the perimeter of the larger triangle
To find the perimeter of a rectangle, we add the lengths of the sides together
Now, since it involves addition only, then the ratio of the sides is same as the ratio of the perimeter
The ratio of the sides are 15/6 which is 1 to 21/2
So we simply need to multiply the perimeter of the smaller triangle by 2.5 to get the perimeter of the larger triangle
Mathematically, that would be 2.5 * 22 = 55