Basic Geometry, Manual for Teachers |
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angle apply assumptions authors base BASIC GEOMETRY called Chapter chord circle coincide Consequently consider constructions contains continuously converse Corollary corresponding defined definition demonstrative diagonals diameter directed discussion distance draw equal equation example Exercises existence expected extended figures five follows four fundamental given given circle given line greater half-line idea important inches intersection isosceles joining length less limit locus logical mathematics means measure meet method necessary pairs parallel perpendicular plane polygon positive possible postulates Principle proof proportion proposition prove pupil radius rational real numbers reasons referred regular relation requires respect segment shown sides similar sort square statement straight line student suggest tangent teacher term Theorem third tion triangle true usually varies vertex wish