This is the arch of one side, which ishere a semi-circle. Draw the chord line A B, which di-vide into any number of equal parts ;from the centre, draw lines throughthose parts, touching the arch; drawA C, perpendicular to the base line,and from the crown of the arch at B,draw lines through the… … This shows the width of one end ofthe plan. Set the height of the middleof the arch the same as in the formerfigure ; draw and divide the chord, asbefore, into equal parts, of the samenumber. Transfer the perpendicular AC, in Fig. 10. Draw radiating lines re-spectively, from the centre and from…
Architecture
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