The perimeter of the larger triangle is 51
Here, we want to calculate the perimeter of the larger triangle
From the smaller triangle, we can see that its shortest side is 4
The shortest side of the larger triangle is 12
This shows that the scale of the larger to the smaller is 3 to 1
Mathematically, what this means is that, by multiplying the length of the smaller triangle by 3, we can get the sides of the larger
Hence, what we have at this point is that the sides of the larger triangle are 12 by 18 by 21
Mathematically, the perimeter of a triangle can be calculated by adding the length of the sides together
With respect to this question, the perimeter of the larger triangle will be;
12 + 18 + 21 = 51
