A Supplement to the Elements of Euclid

ABCD aggregate arch base bisect centre chord circle ABC circumference common constr construction describe a circle describe the circle diameter difference distance divided double draw E equal equiangular equilateral extremities fall figure finite straight line four fourth given circle given finite straight given point given ratio given rectilineal given square given straight line greater half inscribed join less Let ABC lines be drawn magnitudes manifest manner mean meet opposite sides parallel to BC parallelogram pass perimeter perpendicular polygon PROBLEM produced PROP proportional rectangle contained rectilineal figure right angles scribed segment semi-diameter shewn sides similar square straight line joining taken tangent THEOREM third touch the circle trapezium triangle vertex vertical