Find the side $ a $ of a square if diagonal $d = 4\, \text{cm}$.
Answer
$2 \sqrt{ 2 }\, \text{cm}$
Explanation
To find side $ a $ use formula:
$$ d = \sqrt{ 2 } \cdot a $$After substituting $d = 4\, \text{cm}$ we have:
$$ 4\, \text{cm} = \sqrt{ 2 } \cdot a $$ $$ a = \dfrac{ 4\, \text{cm} }{ \sqrt{ 2 } } $$ $$ a = 2 \sqrt{ 2 }\, \text{cm} $$This page was created using
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