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German: Geometrierechner |

Make calculations in a regular octagon. Enter one value and, when needed, change the number of decimal places. Then click Calculate.

d = a * √ 4 + 2 * √2

e = a * ( 1 + √ 2 )

f = a * √ 2 + √2

p = 8 * a

A = 2 * a² * ( 1 + √2 )

r

r

Angle: 135°

Edge length, diagonal, height, perimeter and radius have the same unit (e.g. meter), the area has this unit squared (e.g. square meter).

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