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Transcript

Ex 12.3, 3 If a figure has two or more lines of symmetry, should it have rotational symmetry of order more than 1?In case of rectangle, Number of line of symmetry = 2 Order of rotational symmetry = 2 In case of rhombus, Number of line of symmetry = 2 Order of rotational symmetry = 2 In case of an equilateral triangle, Number of line of symmetry = 3 Order of rotational symmetry = 3 In case of square, Number of line of symmetry = 4 Order of rotational symmetry = 4 In case of circle, Number of line of symmetry = Infinite Order of rotational symmetry = Infinite Hence, A figure should have rotational symmetry of order more than 1, if it has 2 or more lines of symmetry

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.