Class 9 Chapter 7 (Triangles) Class Notes

  Triangles Triangle A closed figure with three sides is called a Triangle. It has three vertex, sides and Angles. Types of Triangle 1. There are three types of triangles on the basis of the length of the sides. Name of Triangle Property Image Scalene Length of all...

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Class 12 Chapter 11 (Three Diamensional Geometry) Class Notes Part II

  Three Dimensional Geometry  1. CENTRAL IDEA OF 3D   There are infinite number of points in space. We want to identify each and every point of space with the help of three mutually perpendicular coordinate axes OX, OY and OZ.  2. AXES  Three...

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Class 12 Chapter 10 (Vector Algebra) Class Notes Part II

  Product of Two Vectors Considering examples:- Suppose we have a wooden stick and in order to move the stick we will apply some force onto it. The stick will move this shows some work is done in moving the stick. Work done = Force × Displacement Where...

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