Area of a Circle by parts Small 320×133 Medium 640×266 Large 1024×426 Download TIFF Original 2400×999 | (153.8 KB) Description Illustration of circle with parts drawn to show area. Keywords area, circle, circles, parts, sections Galleries Circles Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 150