JEE Main Important Physics formulas
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A cone has 2 faces. A character's face can be defined as a separate plane of a solid object. A cone is a three-dimensional solid geometric shape with a circular base and a sharp upper edge called the apex. A cone has two faces and a vertex. A cone has one edge. The three components of a cone are radius, height, and slope height. Radius 'r' is defined as the distance between the centre of the circular base and any point on the circumference of the base. The cone height 'h' is defined as the distance between the apex of the cone and the centre of the circular base.
By the term face, we mean a face or a surface that has any geometric shape by which we recognise the shape of the geometric figure in front of us. For example, we see a cake at a birthday party. We can observe that the cone has 2 faces when the cone is placed on the table with its base lying on the table. This is because just by looking at the two surfaces, we find that it consists of one circular surface on the bottom and one curved surface that is around it. Similarly, with cones, in our daily life, we will think about a cone-type geometric shape. Here we will consider a cap that has the shape of a cone. Some of us have surely come across this shaped cone at birthday parties. So if we look at the cap, we see that it consists of 1 face when it is on our head. This is because we see the cap by its curved surface, which is surrounded by a cone. But instinctively we take off the cap and see its base, which is the lower part of it that was first hidden by our head when we wore it. So we conclude that a cone has 2 faces.
Cubes and cuboids have 6 plane faces.
Cones have one circular face and one curved face.
Cylinders have 2 circular faces and one curved face.
A sphere has one curved face.
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