Home/class 9 ganita manjari part 2 chapter 12 page 81 question answer

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For n = 5, sum is 540°; for n = 6, 720°; for n = 7, 900°. General formula: (n – 2) × 180°. Proof: Drawing all diagonals from a single vertex divides the n-gon into n – 2 triangles, ...

angles of a polygoncbse class 9 maths ganita manjari part 2 solutionsclass 9 ganita manjari part 2 chapter 12 page 81 question answerfind a formula in terms of n and prove itganita manjari part 2 chapter 12 solutionsknow that the answer is 180° for n = 3 and 360°