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A quadrilateral:
A quadrilateral is a closed figure of precisely four sides.
Types of quadrilaterals
There are many types of quadrilaterals. As the word ‘quad’ means four, all these types of a quadrilateral have four sides, and the sum of angles of these shapes is \(360\) degrees.
 
A few quadrilaterals:
 
1. Square
 
2. Rectangle
 
3. Parallelogram
 
4. Rhombus
 
5. Trapezium
 
Let us look at the properties of each of these quadrilaterals in detail.
Classification of quadrilaterals
S. No
Quadrilaterals
Properties
Diagram
1
Square
It has four right angles and four equal sides
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2
Rectangle
It has four right sides, and the opposite sides are equal
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3
Parallelogram
The two sides are parallel, and opposite angles are equal 
69.svg
4
Rhombus
Four equal-length sides and opposite sides are parallel to each other
70.svg
5
Trapezium
The two sides of the trapezium are parallel
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