Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 215
nt to a circle, the square of the tangent isequal to the product of tlie whole secant and its externalsegment. 204 PLANE GEOMETRY 463. Cor. n If two or more secants are drawn from any given -point to a circle^ the product of any secant and its external segment is constant, T ^^-- Given secants PD,… … 2. PT =PD - PA; PT =PE PB, PT = PF . PC. 3. \ PD PA = PE - PB=zPF PC. Q.E.D. 1. F Reasons §286. 2. §462. 3. § 54,1. Ex. 759. If a tangent and a secant drawn from the same point to acircle measure 6 and 18 inches, respectively, how long is the externalsegment of the secant ? Ex. 760. Two secants are…
Geometry, Plane · Geometry, Solid
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