Definition: In geometry, a square is a 2-dimensional figure with four equal sides and four right (90°) angles.
Interactivity 1: Square Directions for interactivity
Click and drag points A and B to resize, move and rotate.
|Basic formulas for square with side a : perimeter is: L=4a , and area is: A=a^2 .
Examples with perimeter and area of square
| Interactivity 2: Construct a square.
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