... given.(b) And let the sphere be cut through the center, and let the section bea great circle, AB,84(c) and <let its> center be K, (d) and <its>diameter B, (e) and let it be ... tosmaller), and let some sphere be given and let it be cut by a plane<passing> through the center, and let there be a section <of the sphere and the plane, namely> the circle AB, and let ... erekted”).ii.5211(i) and let the circle be completed,138 and let its diameter be , (j) and let a sphere be imagined, whose great circle is K, and whosecenter is P, (k) and let a plane be...