JOYFUL MATHS

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Across
  1. 4. Howmanylinescanbedrawenononeline
  2. 8. Whatisthesequence:1,2,3,5,8......
  3. 9. Polygonwiththreesides
  4. 10. formedbytworayshavingacommonstartingpoint
Down
  1. 1. anglegreaterthan90degreebutsmallerthan180degree
  2. 2. Whatisthesequence:1,7,19,37......
  3. 3. Estimatethousandsthefollowingnumbers:1245
  4. 5. whichnumberiskaprekarconstant
  5. 6. Whatisthesequence:1,8,27,64......
  6. 7. anglegreaterthan0degreebutsmallerthan90degree