Babbitt, Arthur B. (Arthur Bradford), b. 1873 · New York, H. Holt and company · leaf 200
be an arc of a circlepassing through A, B, and C. B PROBLEM 16 To circumscribe a circleabout a square—Draw the di-agonals A C and B D inter-secting at E. With E as acenter and radius E B, drawthe circumscribing circle. PROBLEM 17 To inscribe a circle withina triangle—Bisect two ofthe angles.… … To draw a tangent to acircle at a given point on thecircumference—T h r o u g hthe given point A, drawthe radial line A C. Erecta perpendicular to A C atthe point A. (Problem 4.)The perpendicular A B isthe required tangent at A,and the point A is the pointof tangency. PROBLEM 19
Mechanical drawing
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