1. 2. a quantity obtained by multiplying quantities together, or from an analogous algebraic operation.
  2. 4. a plane figure with four equal sides
  3. 5. a plane figure with three straight sides and three angles
  4. 7. linear distance around the outside of the closed curve or circular object
  5. 11. to take a number or a amount from another to calculate the difference
  6. 12. angle less than 90 degrees
  7. 14. a number by which another number is to be divided.
  8. 16. by adding the giving amount to another
  1. 1. a numerical quantity that is not a whole number
  2. 3. ascertain the size ,amount or degree of something by using an instrument
  3. 6. the measurement or extent of something from end to end;
  4. 8. triangle with two equal sides
  5. 9. round plane figure
  6. 10. a number of quantity that when multiplied with another produces a given number
  7. 13. the numerical value of the ratio of the circumference of a circle to its diameter
  8. 15. measure of the amount od space inside a sold figure