Rectangles (Perimeter & Area) Calculator | MizzleDrop

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Rectangles

Rectangles (Perimeter & Area)

Perimeter :

Area :

Length:

Width:

Important Notes

The main identifying property of a rectangle is its four interior right angles. You cannot construct a rectangle without those four angles adding to 360° and each measuring 90°.
The perimeter of a rectangle is the sum of the length of its four sides. Since parallel sides of a rectangle have the same length, the formula for the perimeter of a rectangle=2 (length + width).
Area of a rectangle can be determined by the formula, A=length * width, where A is the area of the rectangle.
A crossed rectangle is a crossed (self-intersecting) quadrilateral which consists of two opposite sides of a rectangle along with the two diagonals. It is a special case of an antiparallelogram and its angles are not right angles. 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.
Examples of Rectangular shapes can be seen in bricks, cement blocks, picture frames, posters, sheets of paper, the sides of shoe boxes, cereal boxes and a lot of other everyday objects.

rectangles

Rectangles

The word rectangle comes from the Latin rectangulus, which is a combination of rectus (as an adjective, right, straight) and angulus (angle). A Rectangle is a four sided-quadrilateral having all the internal angles to be right-angled (90°). It can also be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4=90°).
It can also be defined as a parallelogram containing a right angle. The opposite sides of a rectangle have the same lengths and are parallel. The two sides are said to be parallel when the distance between them remains the same at all points. A rectangle with four sides of equal length is a square.

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The use of units, measurements and conversions plays a big part in excelling in math. The intent of this site is to help visitors perform different varieties of calculations/conversions easily with a high degree of accuracy.

The site includes unit converters for various quantities like currency, length, speed, time, area, volume, mass, temperature, angle, pressure, energy and power. In addition to this, it provides area & volume calculations of different shapes & it's parts. The site also contains several other features like number system conversion, calculation of interests, percentages along with color code finder and many more.

History of Measurement :

The earliest recorded systems of calculations and measures originate in the 3rd or 4th millennium BC. Even the very earliest civilizations needed measurement for purposes of agriculture, construction and trade. Early standard units might only have applied to a single community or small region, with every area developing its own standards for lengths, areas, volumes and masses.

With the development of manufacturing technologies and the growing importance of trade between communities and ultimately across the Earth, standardized weights and measures became critical. Starting in the 18th century, modernized, simplified and uniform systems of weights and measures were developed, with the fundamental units defined by ever more precise methods in the science of metrology.