Geometry Vocabulary

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Across
  1. 1. The measurement on the inside
  2. 5. two lines that meet at 90 degrees
  3. 6. A shape with three sides and has 180 degrees
  4. 7. Part of a line that has a fixed starting point but no end point
  5. 9. An angle that is larger than 90 degrees but smaller than 180 degrees
  6. 11. Flat, two-dimensional surface that extends infinitely far
  7. 12. Part of a line that has a fixed starting point and an end point
  8. 14. A shape with four sides and has 360 degrees
  9. 15. Two or more lines that never touch
  10. 16. A triangle with two equal sides
Down
  1. 1. An angle that is smaller than 90 degrees but larger than 0 degrees
  2. 2. A triangle with all equal sides
  3. 3. An angle that is exactly 90 degrees
  4. 4. X
  5. 5. The measurement around the outside
  6. 8. Extends endlessly in both directions and has 180 degrees
  7. 10. a mathematical statement that two expressions are equal
  8. 13. A triangle with no equal sides
  9. 15. Dot