Across
- 3. the point where two lines meet
- 5. a triangle with all sides of equal length
- 6. the distance around a circle
- 8. a four-sided polygon
- 10. a closed figure formed by three of more line segments
- 11. that intersect to form right angles
- 12. the measure of the steepness of a line on a graph
Down
- 1. a linbe segmenting from the center of a circle to any point on a circle
- 2. the amount of space inside a two-dimensional shape
- 3. the amount of space inside a three-dimensional shape
- 4. A three-sided polygon
- 7. an angle that measures exactly 90 degrees
- 9. figures that have the same size and shape
- 10. in a plane that never intersect