Across
- 3. the distance around something
- 4. math about points, lines, angles, and shapes
- 7. a device that makes a regular, repeated sound to show a musician how fast a piece of music should be played
- 8. 1,000 meters
- 9. a person who examines eyes
Down
- 1. without symmetry
- 2. a scientist who studies stars
- 5. 100 centimeters or 1,000 millimeters
- 6. the width of a circle
- 7. a measurement system based on units of ten