Q6 of 23 Page 220

The centre of circle is (1, 2) and (3, 2) is a point on it. Find the coordinates of the other end of the diameter through this point.

Centre of circle is (1, 2)


Point (3, 2)


Let the coordinates of the other end be (x1,y1)


Using the section formula for mid points



⇒ 3 + x1 = 2


⇒ x1 = - 1



⇒ 2 + y1 = 4


⇒ y1 = 2


Answer : The Other point is ( - 1 , 2)


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