| 100% | SQUARED | 7 | Formula for the area of a circle, "pi r __" |
| 58% | RATIO | 5 | Pi is one, for the circumference of a circle to its diameter |
| 51% | AREA | 4 | Pi r-squared for a circle |
| 51% | AREA | 4 | Pi r squared, for a circle |
| 49% | LENGTH | 6 | Formula for area of a rectangle, width times this |
| 47% | DOWNSTAGE | 9 | The front end of the performance area for a play |
| 46% | AREA | 4 | Pi, for a circle with a radius of one |
| 46% | AREA | 4 | Pi, for a circle with a radius of 1 |
| 45% | RATIO | 5 | Pi is one, between the circumference of a circle and its diameter |
| 45% | BILGE | 5 | The area of a ship where the hull curves |
| 44% | H2O | 3 | Chemical formula for a liquid found in a 23 Across (and a description of its circled letters) |
| 44% | MIDDLEAGE | 9 | Crisis time, for some ... or a hint to each of the circled words |
| 44% | FERRARI | 7 | Maker of a 1967 Formula 1 car nicknamed Spaghetti for its tangle of exhaust pipes atop the engine |
| 44% | BASE | 4 | Length needed to calculate the area of a triangle |
| 43% | ASPEN | 5 | Colorado ski city named for the abundance of a certain tree in the area |
| 43% | AREA | 4 | Pi x r^2, for a circle |
| 43% | ATTIC | 5 | Area of a house often used for storage |
| 43% | LOWPOST | 7 | Area of a basketball court near the basket |
| 43% | STERN | 5 | Area of a two-master near the rudder |
| 43% | RADIUS | 6 | Part of a circle's formula |
| 43% | SEMI | 4 | Half of a circle, for short |
| 43% | CTR | 3 | Midpoint of a circle, for short |
| 43% | CTR | 3 | Middle of a circle, for short |
| 43% | CO2 | 3 | Chemical formula for a compound absorbed by a tree bearing a 37 Across (and a description of its circled letters) |
| 42% | RSAILSPLITTER | 13 | Another nickname for Old Abe ... or a description of the circled letter? |
| 42% | MAP | 3 | Guide for travelers that gives a layout of the area |
| 42% | ARC | 3 | Also the arch of a circle |
| 42% | CLAW | 4 | Area of expertise for a judge |
| 41% | AREA | 4 | ___ of a circle is calculated using its radius and pi |
| 41% | AREA | 4 | Pi times the radius squared, for a circle |