The X+Y Files

Issue 4

Mathematical Crossword

DIAGRAM

All the words in the puzzle have mathematical connections.

ACROSS

DOWN

1. Together with. (3) 2. Nothing (3)
3. Geometric form. (5) 4. Symbol for number in U.S. (4)
9. Measure of land. (4) 5. Circumference/diameter. (2)
10. Elongated circle. (7) 6. Less than 90 degrees. (5)
12. Part of a circle between two radii (6) 7. Solid with four faces. (11)
13. Number one. (5) 8. Numbers fifty to fifty-nine. (7)
15. Fourth Greek letter. (5) 10. Having all sides equal. (11)
17. Something with length, but without width. (4) 11. Measure of length in U.K. (4)
18. Junction in a network. (4) 14. Curve on a cylinder or cone. (5)
19. 3-D geometric figure. (5) 16. Having corners. (7)
22. Straight edge. (5) 20. Numbers smaller than twos. (4)
23. Sides of an undecagon. (6) 21. Fourth prime number. (5)
25. Figure with six sides. (7) 24. Item in a series (4)
27. Measure of surface. (4) 26. Not even. (3)
29. With exactly two factors. (5) 28. With alternative. (2)
30. Find the sum of. (3)