Maths crossword

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Across
  1. 3. the region between an Arc and the two radii joining the centre to the end point of the arc is called
  2. 6. polynomial of one term is called a
  3. 7. The coordinate axis divides the plane into four equal parts called
  4. 8. The angles opposite to equal sides of a triangle are
  5. 9. the point of intersection of the axis is called
Down
  1. 1. The quadrilateral formed by joining the midpoints of the sides of a quadrilateral taken in order is
  2. 2. a polynomial having two terms
  3. 4. is the sum of opposite angles of a quadrilateral is 180 degree then it is
  4. 5. a circle has _____ number of equal chords