Square
A square is a rectangle with four congruent sides.
Example 1
![Picture](/uploads/1/5/9/5/15954846/1369419287.jpg)
This scene in Harry Potter and the Sorcerer's Stone takes place in Hogwarts during Harry's first Potions lesson. Professor Snape, at the moment, is asking Harry a question. The windows at the corner of the room are made up of many little squares.
"'Potter!' said Snape suddenly. ' What would I get if I added powdered root of asphodel to an infusion of wormwood?'" -Harry Potter and the Sorcerer's Stone, Page 137
Example 2
![Picture](/uploads/1/5/9/5/15954846/1369883497.jpg)
This scene in Harry Potter and the Sorcerer's Stone takes place at the end of the movie when Harry, Ron, and Hermione have just figured out that they have to play a giant game of chess. The chessboard is made up of many black and white squares.
"They were standing on the edge of a huge chessboard, behind the black chessmen, which were all taller than they were and carved from what looked like black stone. Facing them, way across the chamber, were the white pieces." -Harry Potter and the Sorcerer's Stone, Page 281