Two circles intersect at two points A and B. If AD and AC are diameters of the circles, then which of the following step is INCORRECT in order to prove that B lies on the line segment DC? (p) Join AB. (q)\[\angle ABC={{90}^{o}}\]and\[\angle ABC={{90}^{o}}\](Angle in semicircle) (r)\[\angle ABD+\angle ABC={{360}^{o}}\] (s) DBC is a straight line segment. Hence B lies on the line segment DC.

Two circles intersect at two points A and B. If AD and AC are diameter

1.	Two circles intersect at two points A and B. If AD and AC are diameters of the circles, then which of the following step is INCORRECT in order to prove that B lies on the line segment DC? (p) Join AB. (q)\[\angle ABC={{90}^{o}}\]and\[\angle ABC={{90}^{o}}\](Angle in semicircle) (r)\[\angle ABD+\angle ABC={{360}^{o}}\] (s) DBC is a straight line segment. Hence B lies on the line segment DC.
A.	p
B.	q
C.	r
D.	s
Answer» D. s

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