Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 128
ur equal parts at r, 2, 3.Set off AR on the tangent equal to the chord A\. Withcentre R, radius RB, describe the arc BE. Then AE isequal in length to the arc AB nearly. (b) Make AR equal to \ AE. With centre R, radiusRE, describe the arc EB. Then AB is the arc required. (c) Find R as in (a). With… … Examples.—1. Draw a. fine line in ink on drawing-paper, and acircle about 2 diameter with a fine ink line on stout tracing-paper. Roll the circle exactly once round on the line,operating with the pricker. Measure carefully the lengths ofthe circumference thus obtained, and the diameter of the…
