Math Puzzle #2

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Across
  1. 2. A triangle that has one 90 degree angle.
  2. 4. Another word for turn.
  3. 9. A triangle with all sides equal.
  4. 10. Another word for flip.
  5. 14. A triangle that has all angles less than 90 degrees.
  6. 15. The perimeter of a circle.
Down
  1. 1. A triangle with no sides equal.
  2. 3. The circumference of a circle is about _____ times the diameter.
  3. 5. Another word for slide.
  4. 6. A triangle with two sides that are equal.
  5. 7. A chord that passes through the center of a circle.
  6. 8. A line segment from one point on the circle to another point on the circle.
  7. 11. The interior angles of a _______ add up to 180 degrees.
  8. 12. A triangle that has one angle more than 90 degrees.
  9. 13. A line segment from the center of the circle to an point on the circle.