Find the volume $ V $ of a cone if radius $r = 2.1$ and height $h = 7.8$.
Answer
$V = 11.466\pi$
Explanation
To find volume $ V $ use formula:
$$ V = \dfrac{ r ^{ 2 } \cdot h \cdot \pi}{ 3 } $$After substituting $ r = 2.1 $ and $ h = 7.8 $ we have:
$$ V = \dfrac{ 4.41 \cdot 7.8 \cdot \pi}{ 3 }$$$$ V = \dfrac{ 34.398 \, \pi}{ 3 } $$$$ V = 11.466\pi $$This page was created using
Cone Calculator