Geometry Extra Credit

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Across
  1. 3. two lines that meet at a right angle
  2. 5. a mnemonic for sin, cos, and tan ratios
  3. 8. an angle formed by two chords that share a common end point on a circle
  4. 10. the theorem that states a^2 + b^2 = c^2
  5. 13. angles that add up to 180°
  6. 16. the perimeter of a circle
  7. 18. a line segment whose endpoints are points on a circle
  8. 19. an angle whose measure is greater than 90 degrees and less than 180 degrees
Down
  1. 1. the longest side of a right triangle
  2. 2. an arc of a circle that measures 180°
  3. 4. angles that add up to 90°
  4. 6. a line that touches a circle at just one point
  5. 7. a line segment that connects the midpoints of two sides of a triangle or a trapezoid
  6. 9. when two ratios are equal
  7. 11. an angle whose measure is less than 90 degrees
  8. 12. the ratio of a side on one figure to the corresponding side on another figure
  9. 14. a mnemonic for finding the slope of a line
  10. 15. the distance around a 2D shape
  11. 17. a line segment from a circle's center to its perimeter