Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 107
^ .1 … 1 IV <b \ \ ^ , Cb / <: / -^ 1 ^ u. ■t I\IECIIAXICAL DRAWING. 25 To inscribe an equilaterul triangle in a circle the same methodmay be nsed. The triangle is formed by joining the oppositevertices of the hexagon. Proof. The triangle O C D is an eqnilateral triangle byconstrnction. Then the…
Architecture · Building · Carpentry
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