Across
- 3. the sixteenth letter of the Greek alphabet ( Π, π ), transliterated as ‘p.’
- 4. either of two angles whose sum is 180°.
- 5. a measurable extent of some kind, such as length, breadth, depth, or height.
- 7. either of two angles whose sum is 90°.
- 10. the extent or measurement of a surface or piece of land.
- 12. a statement that the values of two mathematical expressions are equal (indicated by the sign =).
- 14. an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.
- 15. a part of a line that is bounded by two distinct end points
- 16. (of angles) having a common vertex and a common side.
- 17. a general line
- 18. each of the pairs of opposite angles made by two intersecting line
Down
- 1. point where two lines meet or cross
- 2. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
- 3. A line meeting another at a right angle, or 90°
- 6. An angle that measures more than 90 degrees but less than 180 degrees.
- 7. the distance around something.
- 8. an instrument for measuring the extent and characteristics of a person's field of vision.
- 9. An angle that measures less than ninety degrees but more than zero degrees.
- 11. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
- 13. a straight line from the center to the circumference of a circle or sphere.