Pi Day deals are here: Where to get $3.14 pizza, pie savings, plus McDonald’s, Wendy’s offers - USA TODAY

Pi Day, not to be confused with National Pie Day in January or National Pizza Day in February, means deals on pizza, pastries and more.

It’s not irrational to find deals including pizza for $3.14 this Monday. March 14 is Pi Day, the annual celebration of the mathematical constant π (pi), which is the ratio of a circle's circumferenc… [+8960 chars]

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