What is a quadrilateral? type of quadrilateral

Friends, in today’s post you will get to learn about quadrilateral. It is a shape that is made up of four lines.

What is a quadrilateral?

A plane closed figure made up of four line segments and has four sides, four vertices and four angles. to that shape quadrilateral it is said.

sum of the four interior angles of a quadrilateral 360° it happens.

type of quadrilateral

These are of the following types-

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1.Square

A figure whose four sides are of equal length and each angle is 90 degrees, is called square it is said.

class formula

Area of ​​square = side

Perimeter of square = 4 x side

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Diagonal of square = 2 side

2.Rectangle

A figure with four sides, whose opposite sides are of equal length and each angle is 90 degrees, is called rectangle it is said.

rectangle formula

Area of ​​rectangle = length x breadth

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Diagonal of rectangle = Length² + Breadth²

Perimeter of rectangle = 2 (length + breadth)

3. Trapezium

The area bounded by four unequal sides on a plane whose two opposite sides are parallel and unequal is trapezoid It is called

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Trapezoidal Formula

Area of ​​trapezium = (sum of two parallel sides x height)

4. Parallelogram

The area on a plane bounded by four sides whose opposite sides are equal and parallel and hence their angles are equal, parallelogram It is called

parallelogram formula

Area of ​​Parallelogram = Base x Breadth

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Perimeter of parallelogram = 2 × sum of corresponding sides

key point

• In a parallelogram, the opposite sides in each pair are equal.
• In a parallelogram, the opposite angles in each pair are equal.
• In a parallelogram, both the diagonals bisect each other.

5.Rhombus

The area bounded by four sides on a plane whose opposite sides are equal and hence the angles of the opposite are equal, rhombus It is called

rhombus formula

Area of ​​rhombus = (product of both the diagonals)

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Perimeter of rhombus = 4 x side

key point

• In a rhombus, all four sides are equal.
• The diagonals of a rhombus are perpendicular to each other.
• The opposite angles of a rhombus are equal.

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