Question
Find the circumcircle radius $ R $ of a hexagon if short diagonal $s = 0.75\, \text{cm}$.
Answer
$0.433\, \text{cm}$
Explanation
STEP 1: find side $ a $
To find side $ a $ use formula:
$$ s = \sqrt{ 3 } \cdot a $$After substituting $s = 0.75\, \text{cm}$ we have:
$$ 0.75\, \text{cm} = \sqrt{ 3 } \cdot a $$ $$ a = \dfrac{ 0.75\, \text{cm} }{ \sqrt{ 3 } } $$ $$ a \approx 0.433\, \text{cm} $$STEP 2:
The radius of the circumcircle is equal the side of the hexagon. $$ R = 0.433 $$
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