Solve these clues to fill the grid.
- Existing outside of or not in accordance with nature
- 3 Across
- The length of a line segment between the center and circumference of a circle or sphere
- 5 Across
- The boundary line or the area immediately inside the boundary
- 9 Across
- A particular environment or walk of life
- 10 Across
- A science dealing with the logic of quantity and shape and arrangement
- 1 Down
- The relation between things with respect to their comparative quantity, magnitude, or degree
- 2 Down
- The boundary line encompassing an area or object
- 4 Down
- The length of a straight line passing through the center of a circle and connecting two points
- 6 Down
- Any of the natural numbers or zero (plural)
- 7 Down
- Ellipse in which the two axes are of equal length
- 8 Down