Vatsal Sethi Class IX-D Summer Holiday Homework Crossword

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Across
  1. 2. Coordinate of point (-5,6) lies in -
  2. 4. To find the height of a tower or to find the distance of a ship from the light house, one needs to know the angle formed between the ______ and the line of sight.
  3. 7. A linear equation in two variables has ______ many solutions.
  4. 9. If three or more points lie on the same line, they are called ______ points.
  5. 11. The point where X'X and Y'Y cross is called the -
  6. 13. When two rays originate from the same point, an ______ is formed.
  7. 14. √a * √b =
  8. 16. The graph of every linear equation in two variables is a ______ line.
  9. 17. After plotting points (2,0) ; (2,2) and (0,2)and joining them, the figure obtained is -
  10. 19. √2 is an ______ number
  11. 20. The solution of a linear ______ is not affected when the same number is added or subtracted from both sides of the ______
  12. 23. A solution for the linear equation 'y=3x+5' is -
  13. 25. p/q representation of 0.666666.... is -
  14. 26. Sum of the abscissa of ordered pair (5,9) and ordinate of ordered pair (7,7) is -
  15. 28. In figure 3, if ∠AOC + ∠BOD = 70°, find ∠COD.
  16. 29. A solution for the linear equation '2x-1=y' is -
  17. 31. Standard/General form for writing linear equations in two variables is-
  18. 32. In figure 4, if AB || CD, find the value of 'x'.
  19. 33. Identity used in the denominator while rationalizing numbers
  20. 35. A solution for the linear equation 'y=x+0' is -
  21. 36. Plural word for axis is -
Down
  1. 1. Coordinate of point (4,-7) lies in -
  2. 3. 22/7 is a ______ number
  3. 5. In an ordered pair, the point lying on the Y-axis is known as -
  4. 6. A line with two end points is called a ______
  5. 8. Linear equation 'x-2 = 0' is parallel to this axis.
  6. 10. Rational numbers are either terminating or ______
  7. 12. Amount of numbers present between any two rational numbers
  8. 13. In an ordered pair, the point lying on the X-axis is known as -
  9. 15. Symbol to represent integers (i.e. Z) comes from this word
  10. 18. Cartesian system is inspired by -
  11. 21. The angles in a linear pair have their sum as -
  12. 22. The part of a line with one end point is known as a -
  13. 24. A solution for the linear equation 'y=2x+1' is-
  14. 25. Rational number between 2 and 3
  15. 27. In figure 2,two straight lines AB and CD intersect at O. If ∠COT = 60°,find the value of 'b'.
  16. 28. In figure 1,if ∠BOC = 75°, find ∠AOC.
  17. 30. A solution for the linear equation 'x=4y' is-
  18. 31. (√a + √b)(√a - √b) =
  19. 34. Sum of the ordinate of ordered pair (7,10) and abscissa of ordered pair (13,15) is -