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 262
Fig. i, … Fig. 2. Let B and C be the centres of the given circles, and A thecentre of the variable circle touching the others at the points D andE respectively. 234 EXERCISES ON EUCLID [266. In Fig. 1, it is clear that the difference of AB and AC is equalto the difference of the radii BD and CE of the given…
Geometry
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