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 432
rmt, rQnQtQform the outline of the required shadow. Draw the diameter rt at right angles to ooQ, then thegenerators RR, TT, the upper semicircle RNT, and thelower semicircle RA/T form the line of separation ; one-halfof the cylinder, including the base, is in shade. Note.—Observe that the shadows…