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Arizona, Colorado, New Mexico and Utah
Perpendicular lines meet at right angles
The current Lincoln penny was first produced in 1909. The first penny produced by the United States Mint was produced in 1793. The Continental Congress authorized the production of what is now referred to as the "Fugio Cent" in 1787, so that is arguably the first US penny. Prior to that point, individual states issued their own coins, including pennies.
Assuming you are referring to US states, North / South could be Alaska and Florida. East / West could be California and Massachusetts.
That would be two perpendicular lines.