DBA 9

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Across
  1. 4. An angle at the center of a circle with end points on the circle's circumference
  2. 5. the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
  3. 7. the worth of each digit depending on where it lies in the number
  4. 10. angles in standard position (angles with the initial side on the positive x-axis) that have a common terminal side.
  5. 12. two values, numbers or quantities which are the same
  6. 14. the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
  7. 16. the measure of a central angle that intercepts an arc s equal in length to the radius r of the circle.
  8. 18. the point opposite to and farthest from the base of a geometrical figure
  9. 21. a unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius.
  10. 22. the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse.
Down
  1. 1. a circle of unit radius
  2. 2. a primitive notion that models an exact location in the space, and has no length, width, or thickness.
  3. 3. assigns to each element of X exactly one element of Y.
  4. 4. C = 2πr
  5. 6. The axes of a two-dimensional Cartesian system divide the plane into four infinite regions, called quadrants, each bounded by two half-axes. These are often numbered from 1st to 4th and denoted by Roman numerals
  6. 8. the numbers that have a fixed or a finite number of digits after the decimal point.
  7. 9. a two-dimension surface formed by two number lines
  8. 11. Lenz
  9. 13. the branch of mathematics concerned with specific functions of angles and their application to calculations.
  10. 15. an angle that measures less than 90 degrees
  11. 17. the distance between two points along a section of a curve.
  12. 19. the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
  13. 20. An expression in mathematics which does not have meaning and so which is not assigned an interpretation