Concise Mathematics Class 10 ICSE Solutions for Chapter 20 - Cylinder, Cone and Sphere (Surface Area and Volume)

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ICSE Class 10 Mathematics Chapter 20 Selina Concise Solutions - Free PDF Download

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ICSE Class 10 Maths Chapter 20 deals with finding surface area and cylindrical volume, cones and spheres, solid conversion, solid mixture, and other miscellaneous issues. For the purpose of clarifying the doubts of students, the ICSE Class 10 Maths Ch 20 Selina Solutions for Class 10 Mathematics is prepared by our experts which are built after deep research. It also provides students with instructions to confidently solve problems. ICSE Class 10 Maths Chapter 20 solutions are available on our website. We will cover the important formulas involved in solving problems related to cylinder cone and sphere Class 10. Chapter 20 Maths ICSE Class 10 is one of the important topics as this will be applicable in higher classes as well as during engineering majors.

Selina Concise Mathematics Class 10 ICSE Solutions for Chapter 20 Cylinder, Cone and Sphere (Surface Area and Volume) part-1
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FAQ (Frequently Asked Questions)

1. What is a Cone's Volume and Surface Area?

Solution: A cone is a type of shape that is geometric. Different kinds of cones exist. On one side, they all have a flat surface that tapers to a point on the other side. The surface area of the cone is the area outside the cone plus the area at the end of the circle. There's a special formula used to figure this out. The first step in finding the surface area of the cone is to measure the radius of the cone part of the circle. The next step is to find a circle or base area. The area of the circle is 3.14 times the radius of the square (πr2).


Surface Area = πr2 + πrl

The number of cubic units that will fill a cone exactly is known as the volume of the cone. The volume enclosed by the cone shall be determined by the formula

Volume = V = ⅓ π r2h

Where “r” is the radius of the circular base of the cone, and “h” is the height of the cone.

2. Could There be a Cone with a Vertex?

Solution: A cone is a shape formed by a set of line segments or lines connecting a common point, called an apex or a vertex, to all points of a circular base (which does not contain the apex). The height of the cone is the distance from the vertex of the cone to the base. The circular base has a radius value measured. The cone has one face, but there are no edges or vertices. His face is in the shape of a circle. As the circle is a flat, flat shape, it's a face. But as it is round outside, there are no edges or vertices.