Quadrilateral
A four-sided polygon.
A quadrilateral is a geometric shape with four sides. It can be either convex or concave, and it has four vertices or corners.
There are several types of quadrilaterals, including the following:
1. Square: A square is a quadrilateral with four equal sides and four right angles.
2. Rectangle: A rectangle is a quadrilateral with four right angles and opposite sides that are parallel and equal in length.
3. Parallelogram: A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.
4. Rhombus: A rhombus is a quadrilateral with four equal sides, but unlike a square, it does not have right angles.
5. Trapezoid: A trapezoid is a quadrilateral with one pair of parallel sides.
In order to find the area of a quadrilateral, you can use various methods depending on the type of quadrilateral. For example, the area of a square can be found by multiplying one of its sides by itself, whereas the area of a parallelogram can be found by multiplying its base by its height.
Overall, quadrilaterals are an important part of geometry and are used in various fields, such as engineering, architecture, and physics.
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