Geometry Vocab

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Across
  1. 2. A(n) __________ is a polygon with 5 sides.
  2. 5. A(n) __________ is a closed figure with four sides that are line segments.
  3. 6. A(n) __________ angle is an angle whose measure is exactly 90 degrees.
  4. 8. A(n) __________ angle measures 180 degrees.
  5. 9. A(n) _____________ has one right angle.
  6. 11. A(n) __________ angle is an angle whose measure is less than 90 degrees.
  7. 13. A(n) _____________ has three acute angles.
  8. 15. Two angles are __________ if the sum of their measures is 90 degrees.
  9. 16. A(n) __________ is a parallelogram with 4 right angles and 4 congruent sides.
  10. 17. A(n) __________ angle is an angle whose measure is between 90 degrees and 180 degrees.
  11. 18. Two angles are __________ if the sum of their measures is 180 degrees.
Down
  1. 1. A(n) __________ triangle has three sides of equal length.
  2. 3. A(n) _____________ has one obtuse angle
  3. 4. A(n) __________ is a polygon with 6 sides.
  4. 7. A(n) __________ triangle has at least two sides of equal length.
  5. 10. A(n) __________ triangle has no sides of equal length.
  6. 12. A(n) __________ parallelogram is a quadrilateral with 2 pairs of parallel sides.
  7. 14. A(n) __________ is a quadrilateral with exactly 1 pair of parallel sides.