40. All chords through an external point to the circle x^2+y^2=16 are drawn having length I which is a positive integer. The sum of the squares of the distances fromcentre of circle to these chords is(a) 154 (b) 124 (c) 172 (d) 128

40. All chords through an external point to the circle x^2+y^2=16 are

1.	40. All chords through an external point to the circle x^2+y^2=16 are drawn having length I which is a positive integer. The sum of the squares of the distances fromcentre of circle to these chords is(a) 154 (b) 124 (c) 172 (d) 128
Answer» 40. All chords through an external point to the circle x^2+y^2=16 are drawn having length I which is a positive integer. The sum of the squares of the distances fromcentre of circle to these chords is(a) 154 (b) 124 (c) 172 (d) 128