**C. 1357.** Sophie had a rectangular prism with a square base and one edge is 3 cm longer than the other edge. She told Greg the surface area of the prism. Given that the lengths of the edges in centimetres are integers, Greg was able to find out the lengths of the edges. How long are the edges?

(5 points)

This problem is for grade 1 - 10 students only.

**Deadline expired on 10 June 2016.**