Solve these clues to fill the grid.
- Bottom part something stands on; a safe spot in baseball
- 2 Across
- How loud something is, or how much space it fills
- 4 Across
- Ellipse in which the two axes are of equal length
- 5 Across
- A polyhedron with two congruent and parallel faces and whose lateral faces are parallelograms
- 8 Across
- A parallelogram with four right angles
- 9 Across
- A point equidistant from the ends of a line or the extremities of a figure
- 10 Across
- A basis for comparison
- 12 Across
- How much matter something contains
- 14 Across
- A hexahedron with six equal squares as faces
- 1 Down
- A particular environment or walk of life
- 3 Down
- In accordance with convention or ___
- 5 Down
- The vertical force exerted by a mass as a result of gravity
- 6 Down
- A polyhedron having a polygonal base and triangular sides with a common vertex
- 7 Down
- The boundary line or the area immediately inside the boundary
- 8 Down
- Any ___-shaped artifact
- 11 Down
- A particular geographical region of indefinite boundary
- 13 Down