American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 60
E H \jS -^G > / … Prob. 54.— Within a given triangle A B C, to inscribe a square. Draw a triangle. Draw the altitude of the triangle A D by Prob.52; at C erect a perpendicular C I by Prob. 5, making it equal tothe base B C ; draw line I D, cutting the side A C in E; from E letfall a perpendicular to the base B C,…
Geometrical drawing
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
