Area l × b l × h
Perimeter 2 × (l + b) 2 × (l + b)

## What are Quadrilaterals Class 9?

A quadrilateral is a trapezoid or a trapezium if 2 of its sides parallel to each other. – Opposite sides of a rectangle and square are parallel. A quadrilateral is a rhombus, if. All the sides are of equal length-Specified 2 pairs of sides are parallel to each other.

## What word describes the quadrilateral?

quadrilateral Add to list Share. A quadrilateral is a four-sided polygon, like a square, rectangle, or rhombus. The computer screen you are looking at right now is probably in the shape of a quadrilateral. Quadrilaterals are also called quadrangles and tetragons. When you see the word quadrilateral, think “four sides”.

## What is the difference between a rectangle and a quadrilateral?

As nouns the difference between quadrilateral and rectangle is that quadrilateral is a polygon having four sides while rectangle is (geometry) a quadrilateral having opposing sides parallel and four right angles.

## Is a square a quadrilateral yes or no?

Yes. Every square is a closed figure, and every square has 4 straight sides, so every square is a quadrilateral.

## What is quadrilateral and its types?

Answer: A quadrilateral refers to a four-sided polygon that has four angles. The seven types of quadrilaterals are parallelogram, rhombus, kite, rectangle, trapezoid, square, and isosceles trapezoid. Answer: A trapezoid refers to a 4-sided flat shape with straight sides and it has a pair of parallel opposite sides.

## What is quadrilateral explain with diagram?

In geometry, a quadrilateral can be defined as a closed, two-dimensional shape which has four straight sides. The polygon has four vertices or corners. We can find the shape of quadrilaterals in various things around us, like in a chess board, a deck of cards, a kite, a tub of popcorn, a sign board and in an arrow.

In Euclidean geometry, a kite is a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other. In contrast, a parallelogram also has two pairs of equal-length sides, but they are opposite to each other instead of being adjacent.

## What do you mean by regular quadrilateral?

And a regular quadrilateral is a quadrilateral with four equal sides and four equal angles. The sum of all the interior angles of a quadrilateral is 360 degrees so each angle of a regular quadrilateral must be 90 degrees.

## How do you identify a quadrilateral?

All sides are of equal length. There are four right angles. There are four sides because it’s a quadrilateral.

## What is the meaning of quadrilateral triangle?

Internal angle (degrees) 90° (for square and rectangle) A quadrilateral is a polygon in Euclidean plane geometry with four edges (sides) and four vertices (corners).