Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 27
Fig. 25. Parallelograms drawn between parallel lines on equal basesare always equal in area, and parallel lines drawn at equalheights are always equal to each other and to the bases, asshown by dotted lines (Fig. 26). … Fig, 26. 14 GEOMETRICAL DRAWING AND DESIGN. Semicircles.—Any two lines drawnfrom the extremities of the diameter,to a point on the circumference of asemicircle, will form a right angle.
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
