Calculation of an area depends on what type of area you are trying to measure. The formula for a square (s2) is different for that of a rectangle (lw), which is different from that of parallelogram (bh).
See the list of related articles for how to calculate various areas.
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An area of a circle is pi*r2 - so an area of a semicircle is 0.5*pi*r2: 0.5*3.14*42 = 25.13 square meters
please tell me i have installed 500 square meter pipe that means how much length of pipe has been install To calculate square meters, multiply the length of the area in meters by the width in meters.
1.68 meters squared is a unit of measurement for area. It represents the area of a square or rectangle with sides measuring 1.68 meters each. To calculate the area of a square or rectangle, you multiply the length by the width, so in this case, the area would be 1.68 meters multiplied by 1.68 meters, resulting in 2.8224 square meters.
Square meters show that there is a flat area. We calculate the area by length times width. This is two-dimensional. Cubic meters show that there is a volume. We calculate the volume by length times width times height. That is three-dimensional.
For example, for a rectangle, you multiply the length (in meters) by the width (in meters). The answer will be the area in square meters. For other geometrical figures you need other formulae.