Question

the volume of a cone with circular base is 216 π centimetre cube if the base radius is 9 centimetre then find the height of the cone

Answer 1

v of cone = 216pie
r= 9 cm
h=?

NOW,
v of cone = 1/3 ×pie× r ^2 × h
= > 216 pie = 1/3 × pie × ( 9×9) × h

=> 216× 3/ 9^2= h
= 648/81 = h
= 8 cm.

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Answer 2

★ Question

the volume of a cone with circular base is 216 π centimetre cube if the base radius is 9 centimetre then find the height of the cone.

________________________________

★ Given

→ Volume of cone = 216π

→ radius =9 cm

→ height = ?

_________________________

Volume of cone =.$\longrightarrow \frac{1}{3}πr^{2}h$

$\longrightarrow 216π = \frac {1}{3}π×9^{2}×h\\ \longrightarrow 216π×\frac{3}{9^2}×h \\ \longrightarrow h= \frac{648}{81} \\ \longrightarrow h=8cm$