What is the definition of a rectangle

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 determine if a set of points is a rectangle?

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 the hypotenuse of a rectangle?

How do you find the missing side of a triangle?

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).