area_rectangle(`3;2`) returns `6`

area online calculator that can calculate the area of a rectangle from its length and its width.

The calculator has several features allowing it to make **area calculations**.
It is thus possible to calculate the surface of a rectangle, also known
area of a rectangle with the area_rectangle function, but also the
surface of a square
, or the
surface of a circle
.

The **area of a rectangle** is the area bounded by his side.
The **area of a rectangle** can be **calculated** using the **formula** `(L*l)`
where L represents the length and l the width of a side.

Thus, **calculating the area of a rectangle** whose the length is 3 and the width is 2 is done by typing the following formula
area_rectangle(3;2), after calculation, the result 6 is returned.

It is also possible to make **symbolic calculation** and to **calculate the area of a rectangle** whose length is
and the width 1+y, by typing the following formula
area_rectangle(1+x;1+y), after calculation, the result is returned.

To apply the different calculation formulas, several quizzes on the calculation of the area of the square, the rectangle, and the circle are proposed.

area_rectangle(length;width)

area_rectangle(`3;2`) returns `6`

See also

- Area of a square : area_square. Area online calculator that can calculate the area of a square from the length of a side.
- Area of a circle : area_circle. Area online calculator that can calculate the area of a circle from its radius or from its diameter.
- Area of a rectangle : area_rectangle. Area online calculator that can calculate the area of a rectangle from its length and its width.
- Find equation of a straight line from two points : equation_straight_line. The equation straight line calculator allows to calculate the equation of a straight line from the coordinates of two points with step by step calculation.
- Perimeter calculator : perimeter. Online perimeter calculator that calculates rectangle perimeter, square perimeter, triangle perimeter or circle perimeter.
- Perimeter of a square : perimeter_square. The online calculator allows to calculate the perimeter of a square from the length of a side.
- Perimeter of a circle : perimeter_circle. Online calculator that calculates the perimeter of a circle from its radius.
- Perimeter of a rectangle : perimeter_rectangle. The online calculator allows to calculate the perimeter of a rectangle from its length and its width.
- Pythagorean theorem calculator : pythagorean. The calculator uses the Pythagorean theorem to verify that a triangle is right-angled or to find the length of one side of a right-angled triangle.
- Calculation of the area of a geometric figure. : area. Online area calculator which allows to calculate the area of a rectangle, square, triangle or circle.
- Volume of a cube : volume_cube. The online calculator allows to calculate the volume of a cube from the length of a side.
- Volume of a rectangular parallelepiped : volume_rectangle. The online calculator allows to calculate the volume of a rectangle from its length, its width and height.
- Volume of a sphere : volume_sphere. The online calculator allows to calculate the volume of a sphere from its radius.