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  3. Mensuration
  4. Perimeter and Area of Plane Figures
  5. Area of circles, sectors and segments
  6. Area and Circumference of a Circle
Grade 10
1. Real numbers
2. Polynomials
3. Linear Equations in Two Variables
4. Triangles
5. Trigonometry
6. Statistics and Probability
7. Quadratic Equations
8. Arithmetic Progression (AP)
9. Circles
10. Coordinate Geometry
11. Mensuration
11.1. Perimeter and Area of Plane Figures
11.1.1. Measuring Areas of Triangles
11.1.2. Measuring Areas of Quadrilaterals
11.1.3. Area of circles, sectors and segments
11.1.3.1. Area and Circumference of a Circle
11.1.3.2. Area and Circumference of a Semi-Circle
11.1.3.3. Area and Circumference of a Circular Ring
11.1.3.4. Area of a Sector, Segment and Length of the Arc
11.1.3.5. Word Problems on Rotating Wheels
11.1.3.6. Word Problems on Rotation of the Hands of the Clock
11.1.4. Areas of Combinations of Plane Figures
11.2. Volume and Surface Area of Solids

Grade 10 Sri Lanka School Math Area and Circumference of a Circle

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