In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
Triangle 1:
side 1 = 7
side 2 = 8
side 3 = 10
Triangle 2:
Perimeter = 100
shortest side = ?
Step 02:
Triangle 1:
Perimeter = 7 + 8 + 10 = 25
Triangle 2:
shortest side
We must apply the properties of similar triangles.
25 * shortest side = 100 *7
shortest side = (100 *7) / 25 = 28
The answer is:
The lenght of the shortest side is 28.