Exercises on Euclid and in modern geometry for the use of schools, private students, and junior university students (1881)
McDowell, James L · Cambridge, Deighton, Bell, and Co. · leaf 232
er centre of similitude. Prove thatthe line joining the middle point of the line so drawn, andthe centre of the circle, bisects that common tangent Let A and B be the centres of the two given circles, K and0 their centres of similitude, and CC a common tangent through0. Join CK, and let C be the… … right, AC and BC are parallel, and because C and C are cor-responding points, AC and BC are parallel (225). ThereforeCBC is one straight line. Similarly, CAC is a straight line, where C corresponds to C. Now, AD joins the middle points of the sides of the triangle 204 EXERCISES ON EUCLID [234. CCK,…
Geometry
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