Audsley, W. (William), 1833-1907, Audsley, George Ashdown, 1838-1925 · London ; Glasgow ; Edinburgh : William Mackenzie · leaf 522
5) be the given line, bisect a b at c, and draw c f perpendicular to a b. betoff on this line, a length, c n, equal to a b, the given side of the required pentagon^ Draw a b and produce it indefinitely, make d e equal to half a b. *iom a, as acentre, with the length ae, as a radius, describe the… … Problem XVI. To describe a pentagon in a given circle.agfhb (fig. 25) be the given circle. Let 1 Draw the diameters, i k and l f, perpendicular to each other ; bisect m k in a. Upon a,as a centre, with the distance a f, describe the arc f b. Upon f, as a centre, with the< distancep b describe…
Architecture, Domestic · Architecture, Gothic
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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-94-179.webp)
