Self-examinations in Euclid

AB² ABCD AC² AD² AE² AG² Algebraically Altitude ANALYTICAL GEOMETRY axes axiom base BD² bisect Book XI CD² centre Circumscribing Co-ordinate Planes compound ratio DE² definition demonstration describe diameter distance Dodecagon draw a touching drawn EF² equilateral equimultiples Euclid Euclid's Elements ex æquo extremities FH² Geometric Mean Geometrical given ³ given line given point given Sphere Hence inscribed intersection join magnitude meet passing Pentagon plane ABC plane YOX polygon position produced proportionals proposition Propp Prove Q. E. D. PROP quadrilateral quantities Radius regular Decagon right angles segment shew shewn side)² similar straight line subtended Surface take any point tangent Theorem touch the given Trapezium triangle vertex وو