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Introduction to Rectangles

A rectangle is a four-sided polygon characterized by its unique properties. Each of its four angles measures exactly 90 degrees, making it a perfect example of a quadrilateral. The opposite sides of a rectangle are equal in length and parallel to each other, which classifies it as a type of parallelogram.

Properties of Rectangles

The defining feature of a rectangle is that all its angles are right angles, each measuring 90°. This ensures that the opposite sides are not only equal but also parallel. As a result, a rectangle maintains symmetry along both its horizontal and vertical axes, making it a versatile and commonly used shape in various fields, including architecture and design.

Rectangles as Parallelograms

Given that the opposite sides of a rectangle are both equal and parallel, it fits the definition of a parallelogram. This means that every rectangle is inherently a parallelogram, though not all parallelograms are rectangles. The right angles in a rectangle set it apart from other parallelograms, which may have oblique angles.

Applications of Rectangles

Rectangles are ubiquitous in everyday life and have numerous practical applications. From the design of rooms and buildings to the layout of screens and paper, the rectangle’s properties of equal and parallel opposite sides make it an ideal shape for maximizing space and ensuring structural integrity.