Construction of Angle Small 320×320 Medium 639×640 Large 1023×1024 Download Tiff Original 2397×2400 | (198.9 KB) Description Illustration of construction to lay off an angle. Keywords angle, angle measure, chord, construction, lay off Galleries Geometric Constructions Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 180