mathmania-crossword-set-3-3

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Across
  1. 3. A parallelogram with four equal, or congruent, sides.
  2. 5. Two numbers whose product is 1
  3. 6. The mathematical sentence that uses an equal sign to show that two expressions are equal.
  4. 10. A part of a line; it has one endpoint and continues without end in one direction.
  5. 11. The distance around a figure.
  6. 12. The mean of the data: 4,10,5,9,12 is x. 3 times of x is
  7. 15. The set of all points in the space that are the same distance from the point called center
  8. 16. A polygon with ten sides and ten angles.
  9. 17. who discovered the approximation of pie
  10. 18. two cats weighs 120 kgs ,a dog and cat weighs 70kgs,dog ,cat and fox weighs 230kg.whose weight is more?
  11. 19. An innocent boy has stolen 10 rupees from a store, he returned 10 rupees in store and buy a chocolate of worth 5 rupees and gets back 5 rupees as change. How much loss for store owner.
  12. 20. a diagram that shows how two or more sets in a universal set are related called.
  13. 21. the roots of quadratic equation 2x^2 + x + 4 = 0 are
  14. 22. A measure of the amount of space a 3 dimensional figure occupies
  15. 23. An angle that measures greater than 90 degrees and less than 180 degrees.
Down
  1. 1. When two parallel lines are cut by a transversal, the angles formed on the outside of the parallel lines
  2. 2. rectangular array of symbols or numbers?
  3. 3. Parallelogram with a right angle
  4. 4. A quadrilateral with exactly one pair of parallel sides.
  5. 7. x = -b ± √(b² - 4ac)/2a is formula for
  6. 8. If AM of a, a+3, a+6, a+9 and a+12 is 10, then a * 11 ?
  7. 9. what is known as b^2-4ac for expression ax^2+bx+c?
  8. 12. the first prime number
  9. 13. If the height of the building and distance from the building foot’s to a point is increased by 20%, then the angle of elevation on the top of building
  10. 14. the addition of a rational number and an irrational number is equal to: