faiv ii

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Across
  1. 2. The type of triangle obtained by joining the points (3,-1),(3,-3) and (5,-1).
  2. 3. Lengths of two tangents drawn from an external point.
  3. 5. The two A.Ps have the same common difference. The first term of one of them is -1 and that of the other is -8. Then this is the difference between the fourth terms.
  4. 6. ______factor means the ratio of the sides of the triangles to construct with the corresponding sides of given triangle
  5. 8. Distance of a point from X-axis.
  6. 10. This object is combined with a hemisphere to give a plumb line.
  7. 11. The shape obtained by graphical representation of a quadratic polynomial.
  8. 12. it is an arrangement of number whose element follows a certain general pattern either from the beginning or after some terms.
  9. 13. An experiment or activity which is associated with certain outcome.
  10. 14. The point that divides each median of a triangle in the ratio 2:1
  11. 15. The angle formed by the line of sight with horizontal below the horizontal is called angle of
  12. 18. The perpendicular distance between a point and horizontal is called ___________of the point
  13. 19. An arithmetic sequence in which the difference of a term and its predecessor is always constant.
  14. 22. The point (2,y)divides the line segment joining the points A(-2,2)and B(3,7) in the ratio 4:1, the value of y is
  15. 25. Number of tangents that can be drawn from an external point of circle.
  16. 27. the line drawn from the eyes of the observe to a point of the objective to be observed is called
  17. 28. the angle formed by the line of sight with horizontal above the horizontal is called angle of
  18. 30. Various elements of a sequence
  19. 32. The ratio of ‘Number of favourable outcomes’ to ‘Total number of outcomes’
  20. 33. Radii of two circles are 6 cm and 8 cm . Then this is the diameter of another circle whose circumference is sum of the circumference of the two circles .
  21. 34. if t_n=(n-1)(n-2)(n+1), then this is the third term
  22. 35. This object is obtained by cutting a cone by a plane, parallel to the base.
  23. 36. The branch of mathematics that includes, basic operations of numbers
  24. 37. Another name for x-coordinate.
  25. 39. Probability of an impossible event.
Down
  1. 1. The instrument having a semi-circular scale and used to measure angles is called a
  2. 3. Getting a six in a throw of a die.
  3. 4. Probability of a sure event
  4. 5. Region enclosed between an arc and two radii.
  5. 7. Three points having the area of triangle formed by them as zero.
  6. 9. value of discriminant indicate no real solution for a quadratic equation
  7. 15. In a quadratic equation ax^2+bx+c=0, this is represented by b^2-4ac
  8. 16. This line meets the circle in two points.
  9. 17. Two points which are at the same distance from a point are called __________points
  10. 20. In II quadrant abscissa is negative and ordinate is _______
  11. 21. The mathematical instrument used to measure the angle of elevation or depression of an object is called-----------
  12. 23. If two solid hemisphere of same base radius ‘r’ are joined together along their bases. The curved surface of the new solid is how many times of πr^2
  13. 24. _________are a set of values that show an exact position in a plane.
  14. 26. Various terms of a sequence
  15. 29. This is an angle in degree between a tangent and radius at a point on the circle.
  16. 30. If -2 is a root of the equation kx^2+5x-3k=0,then this is the value of k
  17. 31. The figure obtained by joining the points (3,2),(0,5),(-3,2)and (0,1)
  18. 37. The amount of surface inside the bounded region of a flat shape is__________
  19. 38. In a quadratic equation, - b/a represents the ____of the roots.