Parallelogram A parallelogram is a quadrilateral (a polygon with four sides) in which opposite sides are parallel and equal in length A parallelogram is a quadrilateral (a...
rectangle A rectangle is a four-sided polygon with opposite sides that are parallel and equal in length A rectangle is a four-sided polygon with opposite sides that...
square Definition: A square is a four-sided polygon with all sides of equal length and all angles of equal measure (90 degrees) Definition: A square is a...
perpendicular lines Perpendicular lines are a specific type of lines that intersect at a right angle Perpendicular lines are a specific type of lines that intersect at...