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Rectangles and squares
Area and diagonal length and angle.
Mathematics index
Geometry (2d) index
This calc gives some properties of rectangles. For a square, set both sides to be the same length.
Side a
Side b
Area is
units²
M units²
µ units²
Radius r is
Angle α is
degrees (°)
milliradians
radians
grad
arcseconds
arcminutes
circles
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Squares and rectangles are found all around us, and form a basic part of geometry.