What is a parallelogram with four right angles

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Quadrilaterals: Classification

what is a parallelogram with four right angles

A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a A rhombus is defined as a parallelogram with four equal sides.

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Learning Objective s. Quadrilaterals are a special type of polygon. As with triangles and other polygons, quadrilaterals have special properties and can be classified by characteristics of their angles and sides. Understanding the properties of different quadrilaterals can help you in solving problems that involve this type of polygon. Defining a Quadrilateral. Since it is a polygon , you know that it is a two-dimensional figure made up of straight sides.

A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel. A rectangle is a parallelogram with four right angles, so all rectangles are also parallelograms and quadrilaterals. On the other hand, not all quadrilaterals and parallelograms are rectangles. A rhombus is a parallelogram with four congruent sides. The plural of rhombus is rhombi.

There are many different kinds of quadrilaterals, but all have several things in common: all of them have four sides, are coplanar, have two diagonals, and the sum of their four interior angles equals degrees. This is how they are alike, but what makes them different? We know many quadrilaterals by their special shapes and properties, like squares. Remember, if you see the word quadrilateral, it does not necessarily mean a figure with special properties like a square or rectangle! In word problems, be careful not to assume that a quadrilateral has parallel sides or equal sides unless that is stated.

A quadrilateral is a polygon with four sides. There are seven quadrilaterals, some that are surely familiar to you, and some that may not be so familiar. Check out the following definitions and the quadrilateral family tree in the following figure. If you know what the quadrilaterals look like, their definitions should make sense and be pretty easy to understand though the kite definition is a bit of a mouthful. Here are the seven quadrilaterals:. Parallelogram : A quadrilateral that has two pairs of parallel sides. Rhombus: A quadrilateral with four congruent sides; a rhombus is both a kite and a parallelogram.


Quadrilateral just means "four sides" quad means four, lateral means side. A Quadrilateral has four-sides , it is 2-dimensional a flat shape , closed the lines join up , and has straight sides.






3 thoughts on “What is a parallelogram with four right angles

  1. In Euclidean geometry , a parallelogram is a simple non- self-intersecting quadrilateral with two pairs of parallel sides.

  2. Well, any shape that has four sides is a quadrilateral. When all four angles are 90 degrees, you can either form a rectangle or a square.

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