Elementary Geometry, Volume 2 |
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Common terms and phrases
ABē ABCD ALGEBRA altitude angle ABC angle AOB angular points APQB base bisectors bisects the angle Cambridge centre circles touch circumference circumscribed cloth common measure common tangents Construction Crown 8vo DABC Describe a circle diameter divided draw drawn ELEMENTARY equiangular equilateral triangle Fcap find the locus geometrical given angle given circle given line given point given ratio given straight line Hence homologous homologous sides hypothenuse inch inscribed Join LAOB Let ABC magnitudes mean proportional middle points numerical values opposite sides parallel parallelograms pass perimeter perpendicular point of contact PQRS PROBLEM prove Ptolemy's Theorem quadrilateral quadrilateral figure radii radius rectangle contained regular polygon right angles secant Second Edition segments shew shewn similar polygons similar triangles Similarly SPQR tangent THEOREM touch a given TREATISE triangle ABC vertical angle