hogonally, and AB, PQ be their diameterswhich are in the same straight line, then A, P, B, Q form a harmonicrange. [Ex. 3.] Poles and Polar.s. The Polar of any point p with respect to a circleis the locus of the intersection of tangents drawn atthe ends of any chord which passes through P. The… … B Let 0 be the centre of the circle. Through p drawany straight line cutting the circle in A and B. Letthe tangents at A and B intersect in T. From Tdraw a perpendicuLn- TN <ii OP, or OP produced. 272 Geometry. Join OT euttiug AB in M. Then BM is perpen-dicular to OT. Hence, OBT being a…
Geometry · Geometry, Plane
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