Formula for area of a rectangle6/13/2023 ![]() All of these are supported by this online area calculator. For right-angled triangles you can calculate the area by knowing the hypotenuse and the height towards it. There are multiple rules to calculate a triangle's area: SSS (side-side-side), SAS (two sides and the included angle), SSA (two sides and a non-included angle), ASA (two angles and the included side). Visual in the figure below:ĭespite the simplicity of the above equation, in specific situations you may not know these two exact measurements. The formula for the area of a triangle is height x π x (radius / 2) 2, where (radius / 2) is the radius of the base (d = 2 x r), so another way to write it is height x π x radius 2. Irregular shapes would often be broken down to a series of rectangles so that their area can be approximately calculated. It is one of the easiest figures to compute an area for. You need to take two measurements: the width and the height, and just multiply them together. ![]() The formula for the area of a rectangle is width x height, as seen in the figure below: ![]() However, since in most practical situations you need to measure both sides before you know it is a square, it might not be a huge difference, but at least it is easier to calculate. This is the simplest figure to calculate as all you need is a single measurement. The formula for the area of a square is side 2, as seen in the figure below: You can also find the area by converting the unit of length into centimetre. Therefore, the area of a rectangle of length and width 1.5 m and 60 c m is 0.9 m 2. paint required), in land management, agriculture, biology, ecology, and many other disciplines. Substitute the values of l and w in the formula. To find out the area of a triangle A12bh, where b and h are the base and height. square centimeters, square kilometers, square inches, square feet, square miles.Īrea calculations have applications in construction and home decoration (e.g. To find out the area of a Rectangle ALW, where L and W are the lengths of the rectangles sides (length and width). The result is always a squared unit, e.g. When taking measurements or reading plans, make sure all measurements are in the same units, or convert them to the same unit to get a valid result. See below for details on each individual one this area calculator supports, including the formula used.
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