// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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math.mathdodecagon Calculator
Calculates the area, perimeter, and diagonal lengths of a regular dodecagon (12-sided polygon) from the side length. A regular 12-gon approximates a circle with less than 0.2% area error, making it a practical substitute for circular shapes in tiling.
Inputs
S
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
N
Reference formula or conversion factor shown for context.
H
Vertical measurement. For health calculators, typically standing height without shoes.
Results
area
The computed two-dimensional surface area.
perimeter
The total boundary length of the shape.
apothem
Reference formula or conversion factor shown for context.