Simple Mathematics

1. A triangle having no equal sides. 2. The longest side of a right triangle. 3. The square of the longest leg equals the square root of the sum of the two other legs. 4. A polygon with nine (9) sides. 5. A polygon whose area equals half its base multiplied by its height. 6. A line with two (2) terminating ends. 7. In subtraction, this is the number wherein the subtrahend is subtracted from. 8. Method of solving mathematical problems by the use of symbols when figures are inadequate. 9. A quadrilateral having only one (1) pair of parallel sides.