Geometry By: Mac

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