Parallel Bricks

These bricks demonstrate rectangles and, by definition, parallel lines. In fact, they demonstrate many of the postulates and theorems about parallel lines.

A rectangle is a special type of quadrilateral with opposite sides parallel and consecutive sides perpendicular. Because the consecutive sides are perpendicular, each consecutive angle must be a right angle and the opposite sides must be parallel because the same-side interior angles are supplementary. Each bricks is also parallel to the two next it, as shown above. (~JC1)