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# Hexagon Calculator

The hexagon calculator finds side, area, perimeter, radius, diagonal and diameter of a regular hexagon. The calculator explains step-by-step how to find the unknown element.

Hexagon Calculator
input element you know and select what to find
help ↓↓ examples ↓↓
Solve for
provide one element of a regular hexagon
calculator works with decimals, fractions and square roots (to input $\color{blue}{\sqrt{2}}$ type $\color{blue}{\text{r2}}$)
a =

A =
P =

d =

s =
R =

r =
working...
Hexagon formulas
 $$A = \frac{3 a^2 \sqrt{3}}{2}$$ area
 $$P = 6a$$ perimeter
 $$r = \frac{a\sqrt{3}}{2}$$ incircle radius
 $$R = a$$ circumcircle radius
 $$s = a\sqrt{3}$$ short diagonal
 $$d = 2a$$ long diagonal
EXAMPLES
example 1:ex 1:
What is the area of a regular hexagon if the perimeter is 90 cm?
example 2:ex 2:
Find the area of a hexagon if the long diagonal is 12/5 cm.
example 3:ex 3:
What is the side of a hexagon with a area of 50 cm2?
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