Bisect C D at N, F G at O, K L at P, and B I at Q.
Join N H, O M, P A, Q E, intersecting at R, S, T, U.
Bisect A R at V, E S at W, T H at X, and M U at Y.
Join V Q, N Y, W P, O X, N W, V O, Q X, Y P.
Carefully cut out from the original Greek cross the newly-formed Greek cross, and the odd pieces from around it can be arranged to form another Greek cross.
No. XCVIII.—THE HAMMOCK
The greatest number of plane figures that can be formed by the union of ten straight lines is thirty-six.
The two equal lines at right angles are first drawn, and each is divided into eight equal parts. The other eight straight lines are then drawn from a to a, from b to b, and so on, until the hammock-shaped network of thirty-six plane figures is produced.