Grade 6 Sri Lanka School Math Interior and Exterior of An Angle
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4. Integers
6. Fractions
7. Decimals
10. Unitary Method
13. Mensuration
14. Geometry
14.3. Types of Lines
14.4. Intersecting Lines
14.4.1. Identifying the Type of Line
14.4.3. Angle
14.4.3.1. Introduction to Angles
14.4.3.2. Interior and Exterior of An Angle
14.4.3.4. Types of an Angles
14.4.3.5. Measuring an Angle by a Protractor
14.4.4. Triangles
14.4.5. Curve
14.5. Closed Curve
16. Linear Symmetry
17. Data Handling