What Are the Different Parts of a Circle | NCERT Notes Class 6 Maths

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The center point of the entire circle. Point C is the center of the circle.

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The line segment connecting the centre of circle to any point on the circumference of the circle. r is the radius of the circle.

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A line segment connecting two points on the circle and passing through the centre of the circle. It is twice the radius. d is the diameter of the circle.

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The line segment connecting two points on the circle but may or may not pass through the centre of the circle. AB is the chord of the circle.

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It is the perimeter of the circle.

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An arc is the part of circumference. In the figure below, arc APB is minor arc and arc ACB is major arc.

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Sector

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Segment is an interior region bounded by a chord and an arc.

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A line that intersects a circle at two distinct points is called as the secant of a circle. Here, line PQ is the secant of the circle

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Tangent of a circle

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