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Class 9th maths science group Chapter 11 All Theorems

Class 9th maths science group Chapter 11 All Theorems

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    Class 9th maths science group Chapter 11 All Theorems
    11/16/2017 05:50:30 am - notes - 9th - Mathematics Science Group - administrator

    This series of lecture is about class 9th maths book Theorem 11.1.1, Theorem 11.1.2, Theorem 11.1.3, Theorem 11.1.4, Theorem 11.1.5. You will get the lectures and notes about all the exercises of maths 9th, 10th, 11th, 12th. These lectures are related to Punjab Textbook Board PTB, Federal Board, Rawalpindi Board and all other educational boards of Punjab.

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    This Lecture includes complete notes of Chapter 11 Parallelograms and Triangles from class 9th maths (science group) Punjab Text Book Board. For FBISE, RWPBISE and all other boards like Lahore Board, Sargodha Board etc.

    In this Lecture you will go through following Topics: 1. Parallelograms and Triangles i) Theorems on Parallelograms ii) Theorems on Triangles Select a Theorem from the list bellow to see the video of that Theorem directly (works best in Google Chrome Browser): Theorem 11.1.1: In a Parallelogram (i) Opposite Sides are congruent (ii) Opposite angles are congruent. (iii) The diagonals bisec each other. Theorem 11.1.2: If two opposite sides of a quadrilateral are congruent and parallel, it is a parallelogram. Theorem 11.1.3: The line segment, joining the mid-points of two sides of a triangle, is parallel to the third side and is equal to one half of its length. Theorem 11.1.4: The medians of a triangle are concurrent and their point of concurrency is the point of trisection of each median. Theorem 11.1.5: If three or more parallel lines make congruent segments on a transversal, they also intercep congruent segments on any other line that cuts them.
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