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Rectangle

Side a cm m
Side b cm m
Diagonal cm m
Perimeter cm m
Area cm2 m2
Side ratio :   
Side a in ft
Side b in ft
Diagonal in ft
Perimeter in ft
Area in2 ft2

 

All results have been rounded to significant digits.

You can calculate the quantities of a rectangle (side lengths, diagonal, perimeter, area and side ratio) when you know two of them. The results are given in the units centimeter, meter, inch and foot.

Usage: Type two known quantities of a rectangle into the corresponding field with the suitable unit. After a mouse click on any free space of the window or the "calculate"-button the calculation is performed. The fields with the input quantities have a light green background, the background of the output quantities are colored pink.
For a further calculation with a value that has been calculated before, click on the radio button in front of the value. The lines with this quantity will be recolored light green and become input values for the next calculation. The calculation is always performed with the two quantities changed last.
Move the mouse over a unit or click on it to read its full name. Click on the "reset"-button to reset the calculation.

Example: Your desktop computer has a rectangular screen with a side ratio of 16:9 and a diagonal of 26 inch. You want to calculate what diagonal length a screen with the same area and a side ration of 4:3 would have.
For the side ratio type "16/9" into the corresponding field. After the next mouse click this input is changed to the decimal value (1.7778) For the diagonal type "26" into the corresponding field with the unit inch. After a mouse click on any free space of the window or the "calculate"-button you can read the quantitues of the rectangle of this screen (e.g. area = 0.18636 m2).
Now click on one of the radio buttons in front of the lines for areas in order to use this value for the next calculation. Type "4/3" into the field for the side ratio. After another mouse click on any free space of the window or the "calculate"-button you can read, that with this side ratio a diagonal of 24.53 inch would be sufficient to get the same area.

Remarks:
- Large and small numbers are written exponentially. As example 2.3e5 = 2.3⋅105 = 230000 or 4.5e-5 = 4.5⋅10-5 = 0.000045.
- There is no warranty for the conversion. Cactus2000 is not responsible for damage of any kind caused by wrong results.
- Please send an email if you have suggestions or if you would like to see more conversions to be included.

- A collection of all Cactus2000-converters running offline may be ordered for a price of € 15.-. A test version is available for download for free.

© Bernd Krüger, 27.04.2009

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