To draw a circle in any square quadrate appointed.
Fyrste deuide euery side of the quadrate into twoo equall
partes, and so drawe two lynes betwene eche two contrary
poinctes, and where those twoo lines doo crosse, there is the
centre of the circle. Then sette the foote of the compasse in
that point, and stretch forth the other foot, according to the
length of halfe one of those lines, and so make a compas in the
square quadrate assigned.
_Example._
[Illustration]
A.B.C.D. is the quadrate appointed, in whiche I muste make a
circle. Therefore first I do deuide euery side in ij. equal
partes, and draw ij. lines acrosse, betwene eche ij. contrary
prickes, as you se E.G, and F.H, whiche mete in K, and therfore
shal K, be the centre of the circle. Then do I set one foote of
the compas in K. and open the other as wide as K.E, and so draw a
circle, which is made accordinge to the conclusion.