## What is the simple definition of a rectangle?

A rectangle is a four-sided shape whose corners are all ninety degree angles. Each side of a rectangle is the same length as the one opposite to it. COBUILD Advanced English Dictionary.

## What is the best definition of rectangle?

Definition of rectangle

: a parallelogram all of whose angles are right angles especially : one with adjacent sides of unequal length.

## What is the definition and example of a rectangle?

The definition of a rectangle is a four-sided figure or shape with four right angles that isn’t a square. An example of a rectangle is the shape of a an 8×10 picture frame.

## What is a rectangle in geometry?

A rectangle is a 2D shape that has 4 sides, 4 corners, and 4 right angles. … Each corner of a rectangle shape has a right angle of 90º. A rectangle also has two diagonals that are equal in length and intersect in the middle. A rectangle can also be known as an equiangular quadrilateral.

## What is a rectangle for kindergarten?

In geometry, a rectangle is a shape with four sides and four corners. The corners are all right angles. … People make many rectangular things, including most tables, boxes, books, and papers. The word comes from Latin words meaning “right” and angle”. A rectangle whose four sides have the same length is called a square.

## Why is it called a rectangle?

The word rectangle comes from the Latin rectangulus, which is a combination of rectus (as an adjective, right, proper) and angulus (angle). … Other geometries, such as spherical, elliptic, and hyperbolic, have so-called rectangles with opposite sides equal in length and equal angles that are not right angles.

## How do you identify a rectangle?

Rectangle Definition

For a shape to be a rectangle, it must be a four-sided polygon with two pairs of parallel, congruent sides and four interior angles of 90° each. If you have a shape that matches that description, it also is all this: A plane figure. A closed shape.

## What is rectangle BYJU’s?

A rectangle has four sides. The opposite sides are parallel and of equal length. All the interior angles of a rectangle are equal to 90 degrees. The diagonals of a rectangle are of equal length and they bisect each other. If the diagonals bisect each other at right angles, then the rectangle is called a square.

## How do you prove that 4 points make a rectangle?

(i) Plot the given points in the graph and join the points. (ii) Find the length of all sides. (iii) In a rectangle, the length of opposite sides will be equal. (iv) The rectangle can be divided into two right triangles.

## How do you prove that a rectangle is a square?

If a quadrilateral has four congruent sides and four right angles, then it’s a square (reverse of the square definition). If two consecutive sides of a rectangle are congruent, then it’s a square (neither the reverse of the definition nor the converse of a property).

## How do you find the distance of a rectangle?

The perimeter, or distance around a rectangle is h+w+h+w or 2h+2w. The area enclosed by a rectangle is h × w or hw. The distance from one corner of a rectangle to the opposite corner is sometimes called the diagonal and is given by (w2+h2)1/2.

## How do you prove opposite sides of a rectangle are parallel?

Each pair of co-interior angles are supplementary, because two right angles add to a straight angle, so the opposite sides of a rectangle are parallel. This means that a rectangle is a parallelogram, so: Its opposite sides are equal and parallel.

## How do you find the length of a diagonal in a rectangle?

You can find the diagonal of a rectangle if you have the width and the height. The diagonal equals the square root of the width squared plus the height squared.

## How do you find the side of a rectangle when given the diagonal?

Step-by-step explanation: A diagonal of a rectangle cuts the rectangle into 2 right triangles with sides equal to the sides of the rectangle and with a hypotenuse that is the diagonal. All you need to do is use the pythagorean theorem: where a and b are the sides of the rectangle and c is the length of the diagonal.

## How do you find the height of a rectangle if you know the length and width?

Divide the volume by the product of the length and width to calculate the height of a rectangular object. For this example, the rectangular object has a length of 20, a width of 10 and a volume of 6,000. The product of 20 and 10 is 200, and 6,000 divided by 200 results in 30. The height of the object is 30.

## How do you find a hypotenuse?

The hypotenuse is termed as the longest side of a right-angled triangle. To find the longest side we use the hypotenuse formula that can be easily driven from the Pythagoras theorem, (Hypotenuse)2 = (Base)2 + (Altitude)2. Hypotenuse formula = √((base)2 + (height)2) (or) c = √(a2 + b2).