1.

If A and B are two fixed points on the circumference of the circle such that line joining A and B passes through the centre of that circle, then the locus of the point P such that the ∠APB=90∘ is ___ of the circle.

Answer»

If A and B are two fixed points on the circumference of the circle such that line joining A and B passes through the centre of that circle, then the locus of the point P such that the APB=90 is ___ of the circle.



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