Steel Square Small 320×213 Medium 640×427 Large 1024×683 Download Tiff Original 2400×1600 | (167.9 KB) Description Illustration of steel square with hypotenuse drawn. Keywords diagonal, Hypotenuse, measure, measurement, right angle, steel square Galleries Miscellaneous Math Tools Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 135
