Class 9 / CBSE Maths / Surface Areas And Volumes / Surface Areas And Volumes

Surface Areas And Volumes

Surface Area of a Right Circular Cone We have already studied the surface areas of cube, cuboid and cylinder. We will now study the surface area of cone.        So

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Class 9 / CBSE Maths / Surface Areas And Volumes / Surface Areas And Volumes

Surface Areas And Volumes

Surface Area of a Sphere What is a sphere? Is it the same as a circle? Can you draw a circle on a paper? Yes, you can, because a circle is a plane closed figure whose every point lies at a constant

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Class 9 / CBSE Maths / Surface Areas And Volumes / Surface Areas And Volumes

Surface Areas And volumes

Volume of a Right Circular Cone In earlier classes we have studied the volumes of cube, cuboid and cylinder  Fig 11.11 In Fig 11.11, can you see that there is a right circular cylinder

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Class 9 / CBSE Maths / Surface Areas And Volumes / Surface Areas And Volumes

Surface Areas And Volumes

Volume of a Sphere Now, let us see how to go about measuring the volume of a sphere. First, take two or three spheres of different radii, and a container big enough to be able to put each of the sp

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