Math terms

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Across
  1. 1. The ratio of a circle’s circumference to its diameter
  2. 4. A polynomial with two terms
  3. 6. What a number below 0 is called
  4. 9. the straight line from the centre of a circle to the circumference
  5. 12. The line bisecting an interior angle of a triangle
  6. 13. the side opposite to the right angle in a right angled triangle
Down
  1. 2. A whole number from the set of negative, non-negative, positive and 0 numbers
  2. 3. the point of concurrence all the three internal bisectors of the angles of a triangle pass through
  3. 5. a type of angle which is less than 90°
  4. 7. a type of triangle in which all three sides are equal
  5. 8. What an angle equal to 90° is called
  6. 10. a type of angle greater than 90°
  7. 11. what figures or objects that have the same size or shape are called
  8. 14. A quadrilateral with two pairs of parallel sides