Elements of Geometry: Plane geometry

ABCD altitude apothem apply base bisecting bisector called centre chord circle circumference circumscribed coincide common construct contains conversely describe diagonals diameter difference distance divided Draw drawn equal equilateral triangle equivalent Exercise.-If extremities fall figure Find Find the area fixed four GEOMETRY given given circle given point given straight line GIVEN TO PROVE given triangle greater half Hence hexagon homologous hypotenuse inscribed intersection length less limit locus measured medians meet method middle points number of sides opposite sides original parallel parallelogram passes perimeter perpendicular position PROBLEMS proof PROPOSITION PROVE quadrilateral radii radius ratio rectangle regular inscribed regular polygon respectively right angles right triangle segment similar square straight line straight line joining Substituting symmetry tangent THEOREM triangle ABC turns unequal variable vertex vertices