RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 20. Surface Area and Volume of a Right Circular Cone

Subject: Mathematics - Class 9th

Q. No. 7 of CCE - Formative Assessment

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If the radius of the base of a right circular cone is 3r and its height is equal to the radius of the base, then its volume is

We have,

Radius of base of cone = 3r

Height of cone = 3r

Volume of cone =

= 9πr3

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