Rectangle
A four sided shape in which one pair of lines is longer than the other pair.
A rectangle is a quadrilateral (a four-sided polygon) that has opposite sides of equal length and opposite angles of equal measure. It has four vertices (corners) and four sides. The two pairs of opposite sides are parallel and perpendicular to each other. The rectangle is a special case of a parallelogram where all angles are right angles (90 degrees).
The area of a rectangle is calculated by multiplying its length by its width, where the length is the longer side and the width is the shorter side. The formula for calculating the area of a rectangle is:
Area = Length x Width
The perimeter of a rectangle is the total distance around the outside of the rectangle and is calculated by adding the lengths of all four sides. The formula for calculating the perimeter of a rectangle is:
Perimeter = 2 x (Length + Width)
Rectangles are commonly used in geometry, construction, and everyday life. Some examples include building foundations, windows, doors, and picture frames.
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