geometry

12345678910111213
Across
  1. 5. Triangle where all the angles are equal
  2. 8. Perimeter of a circle
  3. 9. Sum of any two sides of a triangle is ______ than the 3rd side
  4. 11. Twice of radius
  5. 12. A device used to measure angles
Down
  1. 1. Angle whose measure lies between 90 degrees and 180 degrees
  2. 2. Triangle where all the sides are of different lengths
  3. 3. lines that intersect at right angle
  4. 4. Triangle where only two sides are equal
  5. 6. segment ____has two end points
  6. 7. A common endpoint of two rays forming an angle
  7. 10. Lines that do not meet
  8. 13. _____ has only one endpoint