09
Dec
Question 6: The volume of a right circular cone is 9856 cm3. If the diameter of the base is 28 cm, find
(i) height of the cone (ii) slant height of the cone (iii) curved surface area of the cone
Cone – Volume
It is quite easy to remember the formula of a cone because it is exactly one-third of the volume of a cylinder with same base radius and height. Watch activity performed in the following video that will never let you forget the formula of volume of cone.
Volume of Cone = πr²h/3
Volume of Cone = 1/3 Volume of cylinder
r = base radius of cone, h = height of cone
What is Area / Surface area / Volume
It is recommended to understand the core concept of area, surface area and volume before we attempt any question based on these concepts.
Chapter 13 – Surface areas and Volumes
Concepts
- Area / Surface area / Volume – Introduction
- Surface Area of Cube and Cuboid
- Volume Of Cuboid and Cube
- Surface Area of Right Circular Cylinder
- Volume and capacity of Cylinder
- Right circular Cone
- Surface Area of Right circular Cone
- Volume of Cylinder vs Cone
- Litres and Cubic centimetre (cm³)
- Cubic meters to litres
