A Treatise on Geometry and Its Application in the Arts

A B C altitude base and altitude bisected called centre chords circle circumference circumscribed cone conical surface conjugate axis constructed corresponding sides curvature curve cycloid cylinder cylindrical surface described diagonals diameter directrix distance divided draw edges ellipse equal and similar equally distant equilateral triangle evident faces figure foci focus fore generatrix geometrical given greater Hence hyperbola length linear unit lines be drawn lines drawn magnitude manner motion moved multiplied number expressing number of sides oblique ordinates osculating circle parabola parallel lines parallelogram parallelopiped pass pendicular perpendicular plane surface polygon position produced proportional radii radius ratio rectangle rectangular regular polygon respectively equal revolution revolve rollers round screw segment solid angle sphere spherical square straight line surfaces of revolution tangent third thread three angles transverse axis triangular triangular prism truncated prism twice vertex vertices volume wheel