# A longer border

On a diagram, a border has plain:striped length = 2:5 and total length 3½ m. Find the two lengths. Explain whether fractional lengths are allowed in this paper model.

**A way to check:** seven parts share 7/2 m, so one part is 1/2 m. The lengths are 1 m and 2½ m. Their sum is 3½ m and their ratio remains 2:5.