Class 10 maths crossword

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Across
  1. 4. graph of a quadratic polynomial
  2. 5. the region bounded by an arc and pair of radii of the circle.
  3. 6. the reciprocal of cosine is ____.
  4. 8. the observation in a dataset with the highest frequency.
  5. 9. the angle of ___ of an object viewed is the angle formed by the line of sight with the horizontal when it is below the horizontal level.
Down
  1. 1. an event having only one outcome is called an ___ event.
  2. 2. the ____ to the circle is perpendicular to the radius to the point of contact.
  3. 3. A ______ equation in the variable x is of the form ax²+bx+c=0, where a, b, c are real numbers.
  4. 6. if two angles of one triangle are respectively equal to 2 angles of another triangle, then the two triangles are ___.
  5. 7. volume of a solid is equal to ___ of base times perpendicular height.