Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 111
tched. PROBLEM 20. To draw an Ellipse when the two Axes aregiven. Secand Method. Draw the two axes A B and P Q in thesame manner as for Problem 19. With O as a center and a radiusequal to one-half tin; major axis, describe the circumference A CD E F B. Similarly with the same center and a radius…
Architecture · Building · Carpentry
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