79cm not 73cm!

I’m working on a tile covered table right now, and I need a piece of plywood to finish it. My friend told me I should go to a carpenter’s shop and get them to cut me a piece I need instead of buying a full-sized board. After going to five different shops I finally found one guys that had a plywood substitute, but no one had exactly what I was looking for. So I told the guy the dimensions and I thought he repeated what I said. Unfortunately though, when I got home the piece of MDF was 5cm shorter than what I needed. He must of understood I said “thlatha sabaeen” (73) instead of “tesaa sabaeen” (79). I’m not sure how that happened! Anyways, I guess my project will just have to wait a little long.