Using Proportions To Find Heights of Trees Small 320×134 Medium 640×267 Large 1024×428 Download Tiff Original 2400×1002 | (248.4 KB) Description Triangle diagram for measuring heights of trees using proportions Keywords angle, angles, height, heights, proportion, proportions, Right Triangle, tree, trees Galleries Proportions Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 90 Courtesy the private collection of Roy Winkelman
