# CLASS-4RECTANGLE

RECTANGLE -

A rectangle is a two-dimensional shape that is characterized by having four straight sides and four right angles. It is a quadrilateral, meaning it has four sides, and it is also a parallelogram, meaning that opposite sides are parallel to each other. Unlike a square, a rectangle has two pairs of sides of different lengths, with the opposite sides being equal in length. The area of a rectangle is calculated by multiplying the length of one side by the length of an adjacent side.

A rectangle is a four-sided flat shape with four right angles (90-degree angles) between its opposite sides. It is a type of quadrilateral, and its opposite sides are equal in length and parallel to each other. The two pairs of opposite sides of a rectangle are also congruent (having the same length), and the perimeter of a rectangle can be calculated by adding the lengths of all its sides. The area of a rectangle can be calculated by multiplying the length of one side by the length of an adjacent side, or by using the formula A = length × width.

A rectangle is a two-dimensional geometric shape with four sides and four right angles. It is a special case of a parallelogram in which all four angles are right angles. The opposite sides of a rectangle are parallel and congruent, which means they have the same length. The area of a rectangle is equal to the product of its length and width, and its perimeter is the sum of the lengths of all four sides. A rectangle can be classified as a quadrilateral, a polygon with four sides. It is a very common shape in mathematics, geometry, and everyday life, and it has a wide range of applications in fields such as architecture, engineering, and design.

A rectangle is a 2-dimensional shape with four straight sides, where the opposite sides are parallel and equal in length. The four interior angles of a rectangle are all right angles (90 degrees). In other words, a rectangle is a quadrilateral with equal opposite sides and equal adjacent sides, where each angle is a right angle. The area of a rectangle is calculated by multiplying the length and width of the rectangle, and its perimeter is calculated by adding up the lengths of all four sides.

A rectangle is a quadrilateral with four straight sides and four right angles, where opposite sides are parallel and equal in length. It is a type of parallelogram with all angles equal to 90 degrees, and its opposite sides are congruent. A rectangle can be defined as a two-dimensional shape that has four sides, with opposite sides being equal in length, and all angles are right angles (90 degrees). The area of a rectangle can be calculated by multiplying its length and width, while its perimeter is the sum of all its sides.

To identify a rectangle, you should look for the following characteristics:-

1. Four straight sides: A rectangle has four sides that are straight, and each side connects two adjacent vertices.
2. Four right angles: All four angles of a rectangle are right angles, which means they measure 90 degrees.
3. Opposite sides are parallel: The opposite sides of a rectangle are parallel to each other, which means they never intersect.
4. Opposite sides are equal in length: The two pairs of opposite sides in a rectangle are equal in length, which means they have the same measurement.

If a shape has all four of these characteristics, then it is a rectangle. For example, a piece of paper or a windowpane can be identified as a rectangle because it has four straight sides, four right angles, opposite sides are parallel, and opposite sides are equal in length.

We can observe from the above picture, AB and DC both are opposite and parallel AB || DC. Whereas AD and BC are opposite and parallel line AB || DC.

AB = DC = L, and AD = BC = W