Text-book of Euclid's elements for the use of schools : books I - VI and XI (1900)
Hall, H. S. (Henry Sinclair), 1848-1934, Stevens, F. H. (Frederick Haller), 1853-1933 · MacMillan : London · leaf 255
meet thegreater of the given circles at D. Through B draw the radius BE par1 to AD, and in the samedirection. Join DE. Then DE shall be a common tangent to the two given circles. For since AC = the diffce between AD and BE, Constr. :. CD = BE: and CD is par1 to BE ; Oonstr. :. DE is equal and par1… … THEOREMS AND EXAMPLES ON BOOK III. 237 It follows from hypothesis that the point B is outside the circleused in the construction \ .. two tangents such as BC may always be drawn to it from B ;ben06 tno common tangents may always be drawn to the givencircles by the above method. These are called the…
Geometry · Mathematics
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