Maths-
General
Easy
Question
Volume of a right circular cone of radius r and height h is given by __________
- πr3
- πr2 h
- 1/3 πr2h
- πr3
The correct answer is: 1/3 πr2h
The volume of a cone is defined as the amount of space or capacity a cone occupies. The volume of cone is measured in cubic units like cm3, m3, in3, etc. A cone can be formed by rotating a triangle around any of its vertices. A cone is a solid 3-D shapes figure with a circular base. It has a curved surface area. The distance from the base to the vertex is the perpendicular height. A cone can be classified as a right circular cone or an oblique cone. In the right circular cone, a vertex is vertically above the centre of the base whereas, in an oblique cone, the vertex of the cone is not vertically above the centre of the base.
The formula to calculate the volume of a cone, given the height and its base radius is:
V = ()πr2 h cubic units
Therefore, option c) πr2 h is correct.
If we take option a) πr3 = Volume of a sphere
If we take option b) πr2h = Volume of cylinder
If we take option d) πr3 = Volume of hemisphere
Therefore, option c) πr2 h is correct.
If we take option a) πr3 = Volume of a sphere
If we take option b) πr2h = Volume of cylinder
If we take option d) πr3 = Volume of hemisphere
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