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 146
118 EXERCISES ON EUCLID [157. The learner should be careful to use the same letters at tltecorresponding points of the figures, since, in this way, he willgenerally find it easy to deduce one case of a proposition fromanother. 157. Through a given point, to draw a straight lineso as to form with…
Geometry
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