Solve these clues to fill the grid.
- A line determining the limits of an area (plural)
- 2 Across
- A hexahedron with six equal squares as faces
- 5 Across
- A parallelogram with four right angles
- 8 Across
- The 90 degree ___ between two perpendicular lines
- 9 Across
- A straight line at right angles to another line
- 10 Across
- An acrobatic feat in which the feet roll over the head and return
- 12 Across
- A straight line connecting any two vertices of a polygon that are not adjacent
- 13 Across
- A government building with five sides that serves as the headquarters of the United States
- 14 Across
- An ___ between 90 and 180 degrees
- 1 Down
- A plane rectangle with four equal sides and four right angles
- 3 Down
- Something that is oriented ___
- 4 Down
- A solid bounded by a ___ surface and two parallel planes
- 5 Down
- The space between two lines or planes that intersect
- 6 Down
- The phenomenon of a propagating wave being thrown back from a surface
- 7 Down
- Something having the property of being analogous to something else
- 10 Down
- A transformation in which the coordinate axes are ___ by a fixed angle about the origin
- 11 Down