Question
Find the circumcircle radius $ R $ of a square if side $a = 3\, \text{cm}$.
Answer
$\dfrac{ 3 \sqrt{ 2}}{ 2 }\, \text{cm}$
Explanation
To find circumradius $ R $ use formula:
$$ R = \dfrac{ \sqrt{ 2 } \cdot a }{ 2 } $$After substituting $a = 3\, \text{cm}$ we have:
$$ R = \dfrac{ \sqrt{ 2 } \cdot 3\, \text{cm} }{ 2 } $$$$ R = \dfrac{ 3 \sqrt{ 2 }\, \text{cm} }{ 2 } $$ $$ R = \frac{ 3 \sqrt{ 2}}{ 2 }\, \text{cm} $$This page was created using
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