Course Content
CHAPTER 1 NUMBERS
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Revision Video for Forming Numbers
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Sets
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CHAPTER 2 NATURAL NUMBERS AND WHOLE NUMBERS
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Integers
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CHAPTER 7 PLAYING WITH NUMBERS
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Basic geometrical ideas(2D)
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Fractions
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Revision(Ist term)
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Decimal Fractions
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Percentage
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Ratio and Proportion
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Understanding elementary shapes
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Perimeter and area
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Revision
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Introduction to Algebra
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Linear equations in one variable
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Constructions
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Data Handling
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Class 6 – MATHEMATICS

Circle

A Circle is a simple closed figure all of whose points are at the same distance from a fixed point  O ( Centre of the circle) in the same plane.

• Radius is the line segment joining the centre of a circle to any point on the circle

• Chord is a line segment joining any two points on a circle.

• Diameter is a chord that passes through the centre of the circle. It is the longest chord in the circle. It is twice the radius.

• Circumference is the distance around a circle.

• Secant is a line which intersects or meets the circle at two distinct points.

• Arc is a part ( continuous) of a circle.

• A diameter divides a circle two equal parts which are called semicircles.

• A chord of a circle divides the area enclosed by it into two parts which are called Segments.

• Sector is the part of a circle enclosed by any two radii of the circle

• If the two radii are at right angles to each other the sector is called a quadrant.