Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 125
114 PLANE GEOMETRY Proposition I. Theorem 284. Every diameter of a circle bisects the circumfer-^ ence aivd the circle, M … Given circle AMBN with center 0, and AB, any diameter. To prove: (a) that AB bisects circumference AMBN;(b) that AB bisects circle AMBN. Argument 1. Turn figure AMB on AB as an axis until it falls upon the plane of ANB. 2. Arc AMB will coincide with arc ANB. 3. .*. arc AMB = 2iTC ANB-, i.e. AB…
Geometry, Plane · Geometry, Solid
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