Outer radius r_o
Outer radius r_o
Number of sides 6
Side length a_6=r_o
Area $r_o*$r_o*3/2*sqrt(3)
sum of sides 6*a_6
Outer angle 360/6
Radius of inner circle r_i=a/(2*tan(36))
Diagonal d=2* r_o
Height h = 2 \cdot r_i
Sum of angles 720


Description at Wikipedia

deesHexagon
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