Find the base area $ B $ of a triangular prism if side $a = 9$ and height $h = 12$.
Answer
$B = \frac{ 81 \sqrt{ 3}}{ 4 }$
Explanation
To find base area $ B $ use formula:
$$ B = \dfrac{ \sqrt{ 3 } \cdot a^2 }{ 4 } $$After substituting $ a = 9 $ we have:
$$ B = \dfrac{ \sqrt{ 3 } \cdot 9^2 }{ 4 } $$ $$ B = \dfrac{ \sqrt{ 3 } \cdot 81 }{ 4 }$$ $$ B = \dfrac{ 81 \sqrt{ 3 } }{ 4 }$$ $$ B = \frac{ 81 \sqrt{ 3}}{ 4 } $$This page was created using
Triangular Prism Calculator