Module 9 DBA

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Across
  1. 6. the conceptual operation of turning a system around an axis
  2. 8. the space between two intersecting lines or surfaces at or close to the point where they meet
  3. 9. the ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine
  4. 10. the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse
  5. 12. a high school math student
  6. 13. a straight line from the center to the circumference of a circle or sphere
  7. 15. an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines
  8. 16. the ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle); the reciprocal of a cosine
  9. 17. a unit of measurement of angles, one three-hundred-and-sixtieth of the circumference of a circle
  10. 18. 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
Down
  1. 1. a unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius
  2. 2. lines that intesect at a right angle
  3. 3. the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles
  4. 4. are angles in standard position that have a common terminal side
  5. 5. the trigonometric function that is equal to the ratio of the sides (other than the hypotenuse) opposite and adjacent to an angle in a right triangle
  6. 7. a meeting point of two lines that form an angle
  7. 11. a circle whose radius is equal to 1
  8. 14. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere