Find the volume $ V $ of a cone if diameter $d = 6.5$ and height $h = 8.4$.
Answer
$V = 29.575\pi$
Explanation
STEP 1: find radius $ r $
To find radius $ r $ use formula:
$$ d = 2 \cdot r $$After substituting $ d = 6.5 $ we have:
$$ 6.5 = 2 \cdot r $$ $$ r = \dfrac{ 6.5 }{ 2 } $$ $$ r = 3.25 $$STEP 2: find volume $ V $
To find volume $ V $ use formula:
$$ V = \dfrac{ r ^{ 2 } \cdot h \cdot \pi}{ 3 } $$After substituting $ r = 3.25 $ and $ h = 8.4 $ we have:
$$ V = \dfrac{ 10.5625 \cdot 8.4 \cdot \pi}{ 3 }$$$$ V = \dfrac{ 88.725 \, \pi}{ 3 } $$$$ V = 29.575\pi $$This page was created using
Cone Calculator