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Sindh Board > 9th > General Math (Total Videos: 475)

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Chapter 11: Practical Geometry (90 videos)
11.1: Introduction to Pratical Geometry
  1. The Protractor and Angle Measure DEMO
  2. Geometrical Constructions
  3. Use of Compass
  4. Bisecting Line Segment
  5. Introduction to Practical Geometry
  6. Problem 1: Introduction to Practical Geometry
  7. Constructing Triangle with Three Sides
  8. Construction of a Triangle when one angle and two sides
  9. Problem 1: Constructing Triangle with Three Sides
  10. Constructing Triangle with Side & Two Angles
  11. Problem 1: Constructing Triangle with Side & Two Angles
11.2: Pythagorus Theorem
  1. Proof of Pythagoras Theorem DEMO
  2. Problem-Proof of Pythagoras Theorem
  3. More on Proof of Pythagoras Theorem 1
  4. More on Proof of Pythagoras Theorem 2
  5. Problem-More on Proof of Pythagoras Theorem 1
  6. Problem-More on Proof of Pythagoras Theorem 2
11.3: Two Special Right Angled Triangles
  1. Two Special Right Angled Triangles DEMO
  2. More on Two Special Right Angled Triangles
  3. Problem-Two Special Right Angled Triangles
  4. Problem-More on Two Special Right Angled Triangles
11.4: Condtion of Similarity of 2 Polygons
  1. Condition of Similarity of 2 Polygons
  2. Problem-Condition of Similarity of 2 Polygons
11.5: Condition of Similarity of 2 Triangles
  1. Similar Triangles DEMO
  2. Similarity and Enlargement
  3. Problem-Similar Triangles
  4. Proportional Parts of Similar Triangle-4
  5. Problem-Similarity and Enlargement
  6. Similar Triangles
11.6: Constructing Similar Triangles
  1. Constructing Similar Triangles
  2. Problem-Similarity and Enlargement
11.7: The Slope of a Line and Its Equation
  1. Inclination of Line DEMO
  2. Slope or Gradient of a Line
  3. Problem-Slope or Gradient of a Line
  4. Slope of Collinear Line Segments
  5. Slope of Parallel Lines
  6. Equations of a Straight Line
  7. Derivation of Slope Intercept form
  8. Problem-Slope of Parallel Lines
  9. Deriving Point-slope Form of Equation of Straight Line
  10. Problem-Equations of a Straight Line
11.8: Circle
  1. Introduction to Circle & its Characteristics DEMO
  2. Problem 1: Introduction to Circle & its Characteristics
  3. Chord , Diameter & Circumference of a Circle
  4. Arc of a Circle
  5. Concept of Central Angle of an Arc
  6. Problem 1: Chord , Diameter & Circumference of a Circle
  7. Segment & Sector of a Circle
  8. Problem 1: Arc of a Circle
  9. Area of a Circle
  10. Length of Arc and Area of Sector
  11. The Radian
  12. Problem 1: Concept of Central Angle of an Arc
  13. Concept of Secant & Tangent Line
  14. Problem 1: Segment & Sector of a Circle
  15. Tangent Circles and Length of Tangent
  16. Concentric Circles and Common Internal and External Tangents to two C
  17. Concept of Inscribed Angle of an Arc
  18. Concept of Circum Circle of a Triangle
  19. Concept of Inscribed Circle of a Triangle
  20. Concept of Escribed Circle of a Triangle
  21. Problem 1: Concept of Secant & Tangent Line
  22. If Arcs Congruent, then Chords Congruent-1
  23. If Chords Congruent, then Arcs Congruent-2
  24. Problem 1: Tangent Circles and Length of Tangent
  25. If Chords Congruent, then Central Angles Congruent-3
  26. Problem 1: Concentric Circles,Common Internal & External Tangents of
  27. If Central Angles Congruent, then Arcs Congruent-4
  28. Axial Symmetry of the Circle
  29. Problem 1: Concept of Inscribed Angle of an Arc
  30. Problem 1: Concept of Circum Circle of a Triangle
  31. Problem 1: Concept of Inscribed Circle of a Triangle
  32. Problem 1: Concept of Escribed Circle of a Triangle
  33. Problem-If Arcs Congruent- then Chords Congruent
  34. Problem-If Chords Congruent- then Central Angles Congruent
11.9: Some Theorems About Circles
  1. Perpendicular radius bisects chord DEMO
  2. Problem 1: Perpendicular radius bisects chord
  3. Converse of perpendicular radius bisects chord
  4. Congruent Chords Equidistance from Circle-4
  5. Chords Equidistance of Circle are Congruent-5
  6. Problem 2: Congruent Chords Equidistance from Circle-4
  7. Central angle theorem
  8. Problem 1: Congruent Chords Equidistance from Circle-4
  9. Tangent to Circle-1
  10. Converse of Tangent to Circle-2
  11. Problem 1: Chords Equidistance of Circle are Congruent-5
  12. Problem 1: Central angle theorem
  13. Problem 2: Central angle theorem
  14. Problem 1: Tangent to Circle-1
  15. Problem 1: Converse of Tangent to Circle-2
 

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