Note 29 — Chapter V
Reading edition
One in 3 or 0·333 is the sine of the angle; similarly if the angle were 30° the sine would be 0·5 or ½, and the theoretical distance travelled one-half.
Reading edition
One in 3 or 0·333 is the sine of the angle; similarly if the angle were 30° the sine would be 0·5 or ½, and the theoretical distance travelled one-half.