| Answer | Crossword Clue |
|---|---|
| RADII | r's, in math |
| RADII | r's, in geometry |
| LAC | Rs. 100,000, in India. |
| LESSONS | Work in the three r's. |
| TRE | Numero di R's in "arrivederci" |
| TRILLS | Rolls the r's in "barrio," e.g. |
| RUSSIA | One of the R's in the USSR |
| RONALD | One of the R's in J.R.R. Tolkien |
