In this video, you will learn the difference between a

**convex**quadrilateral and a

**concave**quadrilateral.

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**quadrilateral**is a four-sided polygon, but what is a convex Quadrilateral?

Quadrilaterals come in different shapes and sizes, and many common shapes we encounter daily are quadrilaterals.

A few examples include,

square

rectangle

parallelogram

rhombus

kite

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Quadrilaterals

**Quadrilaterals**can be further divided by the**interior angle**measurements.A

**convex**quadrilateral has interior angles 180 degrees or less.A

**concave**quadrilateral has an interior angle measure greater than 180 degrees. Most common quadrilaterals are convex, and they do not have any interior angle measure greater than 180 degrees.**CONVEX QUADRILATERALS**

What is a concave quadrilateral?

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**concave quadrilateral**has a reflex interior angle measure. In other words, one interior angle measure is greater than 180 degrees.**CONCAVE QUADRILATERALS**

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**dart**is one example of a concave quadrilateral.A helpful method for memorizing the difference between these two types of quadrilaterals is to think of a cave for a concave quadrilateral. The reflex angle creates a cavity of a cave, which has an angle measure greater than 180 degrees.

**Related Links**

Quadrilaterals

Very helpful and extraordinary definations nd diffrence

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