Online Short Questions Preparations

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Give definition of a circle.

• Ans 1: The set of all points in the plane that are equally distant from a fixed point is called a circle.

Define nappes.

• Ans 1: The surface generated consists of two parts of a right circular cones are called nappes.

In cone how the section of an ellipse is obtained.

• Ans 1: If the cutting plane is slightly titled and cuts only one nappe of the cone, then the section is an ellipse.

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Define the axis of the cone.

• Ans 1: A line through the centre C of a given circle and perpendicular to its plane is called the axis of the cone.

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Define circle as plane section of a cone.

• Ans 1: If a place cuts the cone perpendicular to the axis of the cone, then the section is a circle.

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In cone how the section of an ellipse is obtained.

• Ans 1: If the cutting plane is slightly titled and cuts only one nappe of the cone, then the section is an ellipse.

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Define conics.

• Ans 1: The curves obtained by cutting a (double) right circular cone by a plane are called conics.

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Define radius of the circle.

• Ans 1: The distance from the centre of the circle to any point on the circle is called the radius of the circle.

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In cone how the section of a circle is obtained.

• Ans 1: If the cone is cut by a plane perpendicular to the axis of the cone, then the section is a circle.

Define conics.

• Ans 1: The curves obtained by cutting a (double) right circular cone by a plane are called conics.

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Define circle as plane section of a cone.

• Ans 1: If a place cuts the cone perpendicular to the axis of the cone, then the section is a circle.

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Define the axis of the cone.

• Ans 1: A line through the centre C of a given circle and perpendicular to its plane is called the axis of the cone.

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Define centre of the circle.

• Ans 1: In a circle, the fixed point is called the centre of the circle which is equi-distance from all points in the plane.

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Define a chord of the circle.

• Ans 1: A line segment whose end points lie on the circle is called a chord of the circle.

Define parabola as plane section of a cone.

• Ans 1: If the cutting plane is parallel to the generator of the cone, intersects its one nappe only, then the section is a parabola.

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Define a chord of the circle.

• Ans 1: A line segment whose end points lie on the circle is called a chord of the circle.

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Define radius of the circle.

• Ans 1: The distance from the centre of the circle to any point on the circle is called the radius of the circle.

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