American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 40
by Prob. 21, and draw the radius AB. At point A erect a perpendicular to A B by Prob. 5, which willbe the tangent required. Prob. 23. — To draw a tangent to a given circle from a given pointA, outside the circumference. Find the centre of the circle by Prob. 21, and draw a line from Ato the centre…
Geometrical drawing
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
