Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 33
From point C of the givenangle as centre, and withany radius, draw the arcEF: and with the sameradius, with B as centre,draw the arc GH ; take thelength of the arc EF, andset it off on GH ; draw theline BD through H. Thenthe angle GBH will be equalto the given angle C. PROBLEMS. 12. To bisect a… … From B as centre, and withany radius, draw the arc AC ;from A and C as centres, withany radius, draw the arcs inter-secting at D ; join DB, whichwill bisect the angle ABC. 13. To trisect a right angle. Let ABC be the right angle.From B as centre, and with anyradius, draw the arc AC ; withthe same…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
