- In Euclidean geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length adjacent sides. It is the only regular polygon whose internal angle, central angle, and external angle are all equal (90°), and whose diagonals are all equal in length. A square with vertices ABCD would be denoted ◻ ABCD.
Saddam Hussein was a bad guy. Right? He was a bad guy, really bad guy. But you know what he did well? He killed terrorists. He did that so good. They didn’t read them the rights—they didn’t talk, they were a terrorist, it was over. […] Today, Iraq is Harvard for terrorism. You want to be a terrorist, you go to Iraq. It’s like Harvard. Okay? So sad.
Donald Trump at a campaign rally (July 5, 2016)