An Elementary GeometryReprint of the original, first published in 1873. |
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Common terms and phrases
ABCD adjacent adjacent angles altitude angle ABC apothem base and altitude centre chord circ circumference coincide cone construct the triangle convex surface Corollary cylinder diameter distance divided dodecagon equal altitudes equally distant equiangular equilateral feet frustum given angle given circle given line given point given side given square given triangle half the arc hexagon homologous sides hypothenuse included angle infinite number inscribed internal angles intersection isosceles triangle Let ABCDEF line A B line joining mean proportional measured by half number of sides opposite sides parallel planes parallelogram parallelopiped perimeter perpendicular plane parallel propositions quadrilateral radii radius ratio rectangle regular polygon respectively equal rhombus right angles right prism right pyramid right triangle Scholium secant segment similar triangles slant height sphere tangent THEOREM VII trapezoid triangle ABC vertex