Note Footnote 24 — PROBLEM XIV.
Reading edition
: Or if the length of its side, A C, is given instead, take a e, Fig. 37., equal to half the excess of A B over C D; from the point e raise the perpendicular c e. With center a, and distance A C, describe a circle cutting c e in c. Then c e is the vertical height of the portion of cone required, or C E.] Return to text