Is it still called a block if it's shaped like a triangle? Oklahoma City Oklahoma

The Milk Bottle Grocery was built on prime real estate in 1930 on the original Route 66 alignment. On a tiny triangular block, sits a tiny triangular building with a towering giant milk bottle on top that was added in 1948 to advertise various dairy brands. It was originally visible to all traffic that passed through Oklahoma City, but you can see it now on Classen Boulevard in Oklahoma City, OK