On a pentagon, all the sides are the same length. We can find the perimeter by adding the length of one side five times.
Smaller Triangle Perimeter: 4 + 4 + 4 + 4 + 4 = 20
Larger Triangle Perimeter: 7 + 7 + 7 + 7 + 7 = 35
We can put this into a ratio of 20:35
The GCF of 20 and 35 is 5, so we can divide to find the simplified version of the ratio.
20/5:35/5 → 4:7
Hence, the answer is 4:7
Best of Luck!
