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Definition of Cone

Cone is a three-dimensional figure that has one circular base and one vertex.

More About Cone

  • Right Cone: A right cone is a cone in which the vertex is aligned directly above the center of the base. The base need not be a circle here.
  • Right Circular Cone: When the base of a right cone is a circle, it is called a right circular cone. In a right circular cone, each point on the circle is equidistant from the vertex of the cone.
    • example of cone
  • Oblique Cone: When the vertex of a cone is not aligned directly above the center of its base, it is called an oblique cone.
    • example of cone

Video Examples: Volume Of A Cone

Solved Example on Cone

Ques: Find the base area of a cone of height 5 units and base radius 2 units.

    A. 5
    B. 2
    C. 4
    D. 12.57
    Correct Answer: D


    Step 1: The base radius is 2 units.
    Step 2: So, the area of the base is π × 2 × 2 = 12.57 sq units.

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