| Answer | Crossword Clue |
|---|---|
| triangular | (of a pyramid) Having a three-sided base |
| scalene | a. (of a cone or the like) having the axis inclined to the base b. (of a triangle) having three unequal sides |
| trihedral | (of a solid figure or body) Having three sides or faces (in addition to the base or ends); triangular in cross section |
| trihedrons | A solid figure having three sides or faces (in addition to the base or ends) |
| tricostate | three-ribbed; having three ribs from the base |
