Across
- 4. the total space taken up by a flat (2-D) surface or shape of an object
- 5. a line touching circles or an ellipse at only one point
- 6. a point where two straight lines or rays meet
- 7. straight path that extends infinitely in both directions
- 8. lines that don't intersect
- 9. shape with 8 sides
- 10. closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”
- 11. the side of a right triangle opposite the right angle. It is the longest side of any such triangle
Down
- 1. shape with 6 sides
- 2. 90 degrees
- 3. lines that intersect at a right angle
- 6. the degree of loudness or the intensity of a sound
- 8. represented by a dot