Circle Review (Steven Li)

123456789101112131415161718192021222324252627282930313233
Across
  1. 2. a point defined for any triangle in a way that is independent of the triangle's placement or scale.
  2. 4. an eight-sided polygon or 8-gon
  3. 5. a polygon with four edges (or sides) and four vertices or corners
  4. 7. a triangle that has two sides of equal length.
  5. 11. enclosed by and "fits snugly" inside another geometric shape or solid.
  6. 12. the relationship between two lines which meet at a right angle (90 degrees).
  7. 13. a ten-sided polygon or 10-gon
  8. 16. the line to a plane curve at a given point is the straight line that "just touches" the curve at that point.
  9. 17. is an angle formed by one side of a simple polygon and a line extended from an adjacent side.
  10. 18. a line segment from the center to the midpoint of one of its sides.
  11. 20. the distance around a circle
  12. 21. the center of mass of two or more bodies that orbit one another and is the point about which the bodies orbit.
  13. 23. a point, line, or curve common to two or more objects (such as lines, curves, planes, and surfaces).
  14. 27. a triangle in which all three sides are equal.
  15. 28. a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
  16. 30. a polygon with three edges and three vertices.
  17. 31. a line segment joining two points on a curve
  18. 32. the portion of a disc enclosed by two radii and a circular arc
  19. 33. the general activity of dividing a geometric figure into two equal parts.
Down
  1. 1. four equal sides and four equal angles (90-degree angles, or (100-gradian angles or right angles).
  2. 3. surrounded by and contact by a line around another geometric shape.
  3. 6. a seven-sided polygon or 7-gon.
  4. 8. a circle that passes through all the vertices of the polygon.
  5. 9. a six-sided polygon or 6-gon.
  6. 10. a triangle that is enclosed by and "fits snugly" inside another geometric shape or solid.
  7. 14. a nine-sided polygon or 9-gon.
  8. 15. the angle inside two adjacent sides of a polygon
  9. 19. any twelve-sided polygon.
  10. 22. the set of points which are an equal distance to a fixed point
  11. 24. a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain or polygonal circuit.
  12. 25. any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
  13. 26. any five-sided polygon or 5-gon.
  14. 29. a circle or sphere is any of the line segments from its center to its perimeter
  15. 32. a curve is a line that intersects the curve in at least two (distinct) points.