the line AB is inter- A 6 B D nally divided at C, giving the segments AC, CB; andexternally divided at D, giving the segments AD, DB. Proposition XX. Theorem. If two chords of a circle intersect, eitherwithin or without the circle, the rectanglecontained by the segments of one is equal tothe… … Let the chords AB, CD of the circle ABC intersect in E.Then the rectangle contained hij AE, EB is equal to therectangle contained hy CE, ED. In the As EAD, ECB,Z.D= Z.B, since they stand on same arc AC; and Z.S AED, CEB are equal,being either vertically opposite or coincident; BOOK IV. Intersecting…
Geometry · Geometry, Plane
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