Find the side $ a $ of a pyramid if slant height $s = 18$ and base diagonal $d = 55$.
Answer
$a = \frac{ 55 \sqrt{ 2}}{ 2 }$
Explanation
To find side $ a $ use formula:
$$ d = \sqrt{ 2 } \cdot a $$After substituting $ d = 55 $ we have:
$$ 55 = \sqrt{ 2 } \cdot a $$ $$ a = \dfrac{ 55 }{ \sqrt{ 2 } } $$ $$ a = \frac{ 55 \sqrt{ 2}}{ 2 } $$This page was created using
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