Perspective and geometrical drawing : adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thos. H. (Thomas H.) · Toronto, Ont. : W. Briggs · leaf 128
nce KA describe arc EA cutting KE in E; draw similararc BF cutting MF in F; with centre E and distance EKdescribe arc to cut AG in G ; similarly find H; join EG, GHand HF, completing the octagon. (Fig. 92.) (b) In a given square. Let BCDE be the given square; draw diagonals intersectingat A. With… … N M Fig. 93. No. 22.—To draw a perfect ellipse by means of the fociand intersecting arcs, axes being given.
Geometrical drawing · Perspective
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-112-295.webp)
