7th Grade Vocab

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Across
  1. 3. ratio of a circle's circumference to its diameter, approximately equal to 3.14159
  2. 5. a straight line from the center to the circumference of a circle or sphere.
  3. 6. Angle larger than 90 degrees but less than 180 degrees
  4. 9. triangle with three equal angles
  5. 10. a plane figure made of all the points that are an equal distance from a center point
  6. 12. Angle less than 90 degrees
Down
  1. 1. Perimeter of a circle
  2. 2. Angle that measures exactly 90 degrees
  3. 4. 1/2 of a circle
  4. 7. Triangles, hexagons, pentagons, and quadrilaterals are all examples
  5. 8. 1/4 of a circle
  6. 11. Number of square units needed to cover a given surface