The Elements of Plane Geometry

ABCD adjacent base bisector bisects called centre chord circle circumference circumscribed common Conclusion construct Consult Prop contained describe diagonals diameter difference distance divided draw equal equilateral triangle equivalent exterior angle extremities feet figure Find the area four given circle given line given point given straight line greater half hexagon homologous hypotenuse Hypothesis inches included inscribed interior intersect isosceles triangle legs limit line drawn measured median meet middle point opposite sides parallel parallel lines parallelogram passes perimeter perpendicular perpendicular drawn point of contact point of intersection Problem produced Proof Proposition prove quadrilateral quantities radii radius ratio rectangle regular polygon respectively right angle right triangle SCHOLIUM segments similar square straight line student tangent Theorem third touch transversal trapezoid triangle ABC vertex vertical angle