| Answer | Crossword Clue |
|---|---|
| DELTA | It's triangle-shaped |
| DELTA | Triangle-shaped letter |
| LATEEN | Triangle-shaped sail |
| ONE | It's at the top of Pascal's triangle |
| DCMETRO | Federal Triangle is one of its stops, familiarly |
| IRS | Its HQ is in D.C.'s Federal Triangle |
| EASTERISLAND | It's at the southeasternmost point of the Polynesian triangle |
