- Area de la Sombra de un Objeto
El área de la sombra se refiere a la de un objeto cuadrado o rectangular.

- Area expression with different units
Calculator expresses the given area through the different units of area measurement.

- Area of an irregular quadrangle with the given sides
Calculates an area of an irregular quadrangle with the given sides

- Area of triangle by coordinates
This calculator determines area of triangle, using its vertex coordinates in cartesian coordinate system

- Calculator of area of a triangle using Hero's formula

This article lists several calculators for area of a quadrilateral

- Circle formulae
Circle formulae

- Circular sector
Calculates area, arc length, perimeter and center of mass of circular sector

- Circular segment
Can calculate area, arc length,chord length, height and perimeter of circular segment by radius and angle.

- Conversion between imperial and metric units of area
These calculators convert imperial to metric and metric to imperial units of square

- Counting pipes from the end face
The approach to the calculation of the number of nested circles of smaller radius at a known length of the describing circle of a larger radius. Created by user request

This calculator will help you estimate hip roof parameters, including rafters and roof area

- Number of flagstones for paving
This calculator will help you to estimates number of flagstones needed for paving

- Number of flagstones to units of area and vice versa
These calculators convert entered number of flagstones to area size and vice versa - calculate number of flagstones needed to cover entered ara size. Metric and imperial units are supported

- Pipe cold bending. Flexure depth with main shaft.
Calculates the section flexure depth with pipe bender or bending machine to obtain given parameters.

- Polygon area
Online calculator which calculates area of a polygon given lengths of polygon sides and diagonals which split polygon to nonoverlapping triangles

- Pressure over a surface
This online calculator computes pressure, cause by given mass over given surface in gravity field. Result is displayed using different units of pressure

- Price based on running meter
This online calculator calculates the price of certain area based on price of running or linear meter

- Rectangle area calculation by perimeter
Rectangle area calculation with known perimeter and aspect ratio

- Regular polygon area from circumcircle
Calculates the area of the circumcircle and of the regular polygon from radius of circumcircle and number of sides

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