Quadrant of Circle With 60 degree Arc Small 320×220 Medium 640×439 Large 1024×703 Download Tiff Original 2400×1647 | (158.9 KB) Description Illustration of circle with quadrant and 60 degree arc. Keywords 60 degrees, arc, arcs, circle, circles, Quadrant Galleries Circles Source: Claude Irwin Palmer Library of Practical Electricity: Practical Mathematics For Home Study (New York: McGraw-Hill Book Company, Inc., 1919) 162
