n centre to point of intersection) anda common centre, they would be entirely coincident. Also if two circles intersect in one point they mustintersect in another, since they are closed figures. 11. Let the two circleswhose centres are A andB, intersect. The linethrough A and B, sinceon it lie… … 156 Geometry. to both circles. Hence,—If two circles intersect, theline joining their centres bisects at right anglesthe line joining their points of intersection. Of course, conversely, as has already been shown,the line bisecting at right angles the commonchord passes through both centres (§ 0).…
Geometry · Geometry, Plane
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