Circles and Polygons Review - Xin Sun

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Across
  1. 4. a triangle that has two sides of equal length.
  2. 6. a seven-sided polygon
  3. 9. they occur when two circles on the same plane intersect at exactly one point, but one circle lies outside the other circle.
  4. 15. a straight line from the center to the circumference of a circle or sphere.
  5. 16. the largest circle contained in the triangle
  6. 17. a triangle center, a point defined for any triangle in a way that is independent of the triangle's placement or scale
  7. 20. a triangle in which all three sides are equal.
  8. 21. a straight line that cuts a curve in two or more parts.
  9. 23. an eight-sided polygon
  10. 25. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
  11. 28. a polygon that is equiangular and equilateral.
  12. 29. a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
  13. 32. a six-sided polygon
  14. 33. is the angle between any side of a shape, and a line extended from the next side.
Down
  1. 1. any 2-dimensional shape formed with straight lines.
  2. 2. a point or line common to lines or surfaces that intersect.
  3. 3. a line from the center of a regular polygon at right angles to any of its sides.
  4. 5. a circle which passes through all the vertices of the polygon
  5. 7. a polygon with four edges (or sides) and four vertices or corners.
  6. 8. a line segment that only covers the part inside the circle
  7. 10. any twelve-sided polygon
  8. 11. the enclosing boundary of a curved geometric figure, especially a circle.
  9. 12. is the relationship between two lines which meet at a right angle
  10. 13. divide into two parts.
  11. 14. they have a common internal tangent.
  12. 17. an angle of a polygon contained between two adjacent sides.
  13. 18. a nine-sided polygon
  14. 19. the geometric center of a geometric figure
  15. 22. the set of points which are an equal distance to a fixed point
  16. 24. an area or portion that is distinct from others.
  17. 26. any five-sided polygon
  18. 27. a polygon with three edges and three vertices.
  19. 30. a regular quadrilateral
  20. 31. a ten-sided polygon