Geometry

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Across
  1. 4. end points in a line segment
  2. 6. Two rays forming an angle
  3. 8. triangle whose any two sides are equal
  4. 9. common end points of the two rays
  5. 11. two rays with the same end points
  6. 12. each angle of a rectangle
Down
  1. 1. triangle whose three sides are equal in lengths
  2. 2. and angle equal to 180 degrees
  3. 3. triangle whose three sides are equal in lengths
  4. 5. end points in a ray
  5. 7. angles in a square
  6. 10. angles in a triangle
  7. 13. end points in a line