Course Content
Theme 01: Integers.
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Integers.
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Theme 02: Rational Numbers.
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Rational Numbers.
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Theme 03: Decimals.
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Decimals.
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Theme 04: Fractions.
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Fractions.
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Theme 05: Exponents.
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Exponents.
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Theme 06: Sets.
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Sets.
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Theme 07: Ratio and Proportion.
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Ratio and Proportion.
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Theme 08: Percentage.
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Percentage.
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Theme 09: Profit, Loss and Discount.
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Profit, Loss and Discount.
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Theme 10: Simple Interest
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Simple Interest
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Theme 11: Speed, Distance and Time
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Speed, Distance and Time
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Theme 12: Algebraic Expressions.
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Algebraic Expressions.
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Theme 13: Linear Equations..
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Linear Equations..
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Theme 14: Linear Inequations
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Linear Inequations
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Theme 15: Understanding Shapes
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Understanding Shapes
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Theme 16: Properties of Triangles.
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Properties of Triangles.
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Theme 17: Symmetry.
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Symmetry.
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Theme 18: Representation of 3-D in 2-D.
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Representation of 3-D in 2-D.
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Theme 19: Congruent Triangles.
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Congruent Triangles.
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Theme 20: Construction.
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Construction.
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Theme 21: Perimeter and Area of Polygon.
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Perimeter and Area of Polygon.
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Theme 22: Circumference and Area of a Circle.
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Circumference and Area of a Circle. – Part 1
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Circumference and Area of a Circle. – Part 2
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Theme 23: Collection and Organisation of Data.
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Collection and Organisation of Data.
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Theme 24: Probability.
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Probability.
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Mathematics – 7
About Lesson

In Class 7 Mathematics ICSE, the topic of circumference and area of a circle is introduced. Students learn about the basic concepts related to circles, including the definitions of the radius, diameter, circumference, and area. They also learn how to calculate the circumference and area of a circle using formulas.

 

The formula for the circumference of a circle is (C = 2 times pi times r), where (r) is the radius of the circle and (pi) is a constant approximately equal to 3.14159.

 

The formula for the area of a circle is (A = pi times r^2), where (r) is the radius of the circle.

 

Students also learn about the relationship between the circumference and diameter of a circle, which is given by the formula (C = pi times d), where (d) is the diameter of the circle.

 

Through various examples and problems, students practice applying these formulas to find the circumference and area of circles of different sizes.

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