Elements Of Geometry And Trigonometry

ABCD altitude apothem Applying logarithms centre chord circle circumference complement cone consequently convex surface cosec cosine Cotang cylinder demonstrated in Book denote diameter distance divided draw edges Equation feet find the area Find the logarithmic following RULE frustum given angle greater hence homologous hypothenuse included angle inscribed intersection less Let ABC log sin lower base lune mantissa multiplied number of sides opposite parallel parallelogram parallelopipedon perimeter perpendicular plane MN polar triangle polyedral angle polyedron principle demonstrated prism proportional PROPOSITION proved pyramid quadrant radii radius rectangle regular polygon right-angled triangle Scholium segment semi-circumference side BC similar sine six right slant height solution sphere spherical angle spherical excess spherical polygon spherical triangle square straight line subtracting Tang tangent THEOREM triangle ABC triangular prism triedral angle upper base vertex vertices volume whence write the following