Popular Terms. Detailed listing of activities, costs, expected difficulties, and schedules that are required to achieve the objectives of the strategic plans. Because of the quick increase in number of employees the company I work for reviewed their implementation plan for evacuating the building if there is a fire.
Noun. 1. rectangle-a parallelogram with four right angles. foursquare, square - (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; you can compute the area of a square if you know the length of its sides.
A rectangle with four sides of equal length is a square. In conclusion, the set of all square is a subset of the set of all rectangles. The defining characteristic which differentiates between squares and rectangles is that squares have side of equal length, whilst rectangles have two pairs of opposite sides with equal length.