Q.

What is the definition of the centre of a sphere?

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a

A point equidistant from a common point that is called the center.

b

A point in a sphere that has all its surface points equidistant from this common point.

c

A point that is equidistant from a given point on a sphere.

d

A point from which any point outside the sphere is equidistant.

answer is A.

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Detailed Solution

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The centre of a sphere is a point that is equidistant from all points on the surface of the sphere.

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