An illustration of a right circular cone with labels on dimensions, and hole cut out. Illustration could be used for finding volume where subtraction is used.
Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 218
1667×2400, 430.8 KiB
711×1024, 78.5 KiB
444×640, 42.7 KiB
222×320, 17.4 KiB