Elements of Geometry

A B C acute adjacent altitude base bisect called centre chord circle circumference circumscribed coincide common Cons contained COROLLARY describe diagonals diameter difference direction divided Draw equal equal distances equal respectively equilateral equivalent erected extremities fall figure formed four given given line greater Hence homologous sides hypotenuse included inscribed intercept intersect isosceles joining less Let A B limit line drawn mean measured by arc meet middle point multiplied one-half opposite sides parallelogram perimeter perpendicular plane position PROBLEM proportional PROPOSITION prove quadrilateral quantities radii radius equal ratio rect rectangles regular polygon right angles segment Show similar similar polygons square straight line Substitute subtend surface symmetrical Take taken tangent THEOREM triangle variable vertex vertices