Related Clues:
- Math student's calculation, sometimes
- An A in geometry?
- Length times width, for a rectangle
- Suffix with 37-Across
- Round object
- Globe's shape
- Interior space calculation
- An acre's 43,560 square feet
- ___ 51 (secretive site)
- Two-dimensional figure
- Broadloom calculation
- Nevada's mysterious ___ 51
- Word after rest or residential
- Tile-store calculation
- Geometry figure