Ring Sprung Into Place Small 320×320 Medium 639×640 Large 1023×1024 Download TIFF Original 2400×2403 | (272.1 KB) Description Illustration of ring (small circle in larger concentric circle) sprung into place. Keywords area, circle, circles, concentric, diameter, radius, ring sprung into place Galleries Circles Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 165
