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  4. Lines and Angles
  5. Types of Angles
  6. Complementary and Supplementary Angles

Grade 7 Sri Lanka School Math Complementary and Supplementary Angles

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Grade 7
1. Rational Numbers
2. Integers
3. Fractions
4. Decimals
5. Ratio and Proportion
6. Unitary Method
7. Percentage
8. Profit and Loss
9. Simple Interest
10. Exponents
11. Algebraic Expressions
12. Linear Equations in One Variable
13. Mensuration
14. Geometry
14.1. Lines and Angles
14.1.1. Types of Angles
14.1.1.1. Complementary and Supplementary Angles
14.1.1.2. Linear Pair of Angles
14.1.1.3. Vertically Opposite Angles
14.1.1.4. Angles Around a Point
14.1.2. Angles Formed when a Transversal Cuts Two Parallel Lines
14.2. Triangles
14.3. Congruence
15. Reflection and Rotational Symmetry
16. Three-Dimensional Shapes
17. Probability
18. Data Handling
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