SCHOOL CROSSWORD

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Across
  1. 3. 2(l+b) is formula for _______ of rectangle
  2. 5. _______ angle is more than 90 but less than 180 degrees
  3. 6. Any of the 4 areas made when we divide up a plane by an x and y axis
  4. 8. likelihood of a given event's occurrence
  5. 9. seven sided figure
Down
  1. 1. the result of dividing one number by another
  2. 2. the part of geometry concerned with ascertaining lengths, areas, and volumes.
  3. 3. person who is famous for his right angle triangle theorem
  4. 4. x^2+4x-7 is an ________
  5. 7. 3.14 is the value of _________