Congruent
To be congruent means to have the same size and shape.
Example 1
![Picture](/uploads/1/5/9/5/15954846/1369522872.jpg)
This scene in the the movie Harry Potter and the Sorcerer's Stone takes place right before Christmas when Harry and Ron are playing Wizard's Chess in the Great Hall. All the black and white squares on the chess board are congruent.
"When Harry left the table, he was laden down with a stack of things out of the crackers, including a pack of non-explodable, luminous balloons, a Grow-Your-Own-Warts kit, and his own new wizard chess set." -Harry Potter and the Sorcerer's Stone, Page 204
Example 2
![Picture](/uploads/1/5/9/5/15954846/1369593752.jpg)
This scene in the the movie Harry Potter and the Sorcerer's Stone takes place at Harry's first Quidditch match at Hogwarts. All the different colored squares on the Quidditch arena are congruent.
"By eleven o'clock the whole school seemed to be out in the stands around the Quidditch pitch. Many students had binoculars. The seats might be raised in the air, but it was still difficult to see what was going on sometimes." -Harry Potter and the Sorcerer's Stone, Page 184