the radius and the height of acer slender are in radius 3:7 and its where volume is 330 centimetre cube then the radius of the circle is ____________.
Answers
It's cylinder, by the way.
Given:
ratio of radius and height of a cylinder = 3 : 7
⇒ r/ h = 3/7
⇒ h = 7r/3 cm ...( 1 )
Volume = 330cm³
⇒ πr²h = 330
⇒ [22/7] x [7r/3] x r² = 330
⇒ 22 x r³ = 330*3
⇒ r³ = 15(3)
⇒ r = ∛ 45
. : r = 3.556 cm
Since h = 7r/3,
. : h = 7*3.556/3 = 8.285 cm
. : h = 8.285 cm
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