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Ex 11.1, 1 - Find equation of circle with centre (0, 2), radius 2 - Ex 11.1

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Ex 11.1, 1 Find the equation of the circle with centre (0, 2) and radius 2 Equation of a circle is (x h)2 + (y k)2 = r2 Where (h, k) is the centre & r is the radius Here Centre (h, k) = (0, 2) So, h = 0, k = 2 and radius (r) = 2 Putting the values in (1) (x 0)2 + (y 2)2 = 22 x2 + (y 2)2 = 4 x2 + y2 + 4 4y = 4 x2 + y2 4y = 0

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.