Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 71
Fig. 122 85. To draw a tangent to agiven circle from a givenpoint A outside it. Find the centre C (Prob.32). Join AC, and bisectin B. From B as centre,and with BA as radius, de-scribe a semicircle cuttingthe circumference in D. JoinAD, and produce it. Thenthe line AD is the tangentrequired. … Fig. 123. 58 GEOMETRICAL DRAWING AND DESIGN.
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
