Question
Find the circumcircle radius $ R $ of an equilateral triangle if side $a = 23.5\, \text{cm}$.
Answer
$13.5677\, \text{cm}$
Explanation
To find circumradius $ R $ use formula:
$$ R = \dfrac{ \sqrt{ 3 } \cdot a }{ 3 } $$After substituting $a = 23.5\, \text{cm}$ we have:
$$ R = \dfrac{ \sqrt{ 3 } \cdot 23.5\, \text{cm} }{ 3 } $$$$ R = \dfrac{ 40.7032\, \text{cm} }{ 3 } $$ $$ R \approx 13.5677\, \text{cm} $$This page was created using
Equilateral Triangle Calculator