18

​Q18. Find the co-ordinates of the centre of the circle which passes through the points A (3, 2) B (4,5) an C (3, – 2).

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Let centre be O (x,y)
Now since A B and C lie on the circle, thus OA = OB = OC 

I'm getting it to be O (77/2 , -7/2) 
Hope it helps!

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