Geometry Crossword

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Across
  1. 1. LA= 1/2pl
  2. 4. Height MUST be perpendicular to the base
  3. 6. Half of a circle
  4. 9. Comparison of two ratios
  5. 12. Has three sides
  6. 15. A chord that passes through the center of a circle
  7. 17. Triangle; Two opposite sides are equal
  8. 19. Measurement of a 3-D shape
  9. 20. Bounded by two radii and an arc
Down
  1. 2. Average of a set of two or more numbers
  2. 3. Makes half of a sphere
  3. 5. M=(x1+x2/2,y1+y2/2)
  4. 7. A line that touches a circle at exactly one point
  5. 8. Extends endlessly in both directions
  6. 10. Comparison of two integers
  7. 11. Has no corners, edges or ends
  8. 13. Makes a 90 degree angle
  9. 14. Bounded by two radii and an arc
  10. 16. Opposite leg to the hypotenuse
  11. 18. Y=mx+b