Geometry Storybook Crossword Puzzle

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Across
  1. 4. A triangle that has three congruent sides. Three angles of equal length.
  2. 5. A theorem used when one triangle side length is missing. Two sides are squared and added/subtracted to determine the missing side length.
  3. 6. The middle point of a circle. The point of a circle that is equally distant from all points of the circle.
  4. 8. A straight one-dimensional figure having no thickness. It extends indefinitely in two directions.
  5. 13. A transformation in which each point of the pre-image has an image that is the same distance from the line of reflection. Can be described as a ‘flip’ over the line of reflection.
  6. 14. A straight line segment. Both endpoints of the line segment lie on the circle.
  7. 16. Any straight line segment. It passes through the center of the circle and its endpoints lie on the circle.
  8. 18. A triangle that has three unequal sides. No equal angles.
  9. 19. A transformation in which a plane figure turns around a fixed center point. The center of rotation is fixed and all other points rotate around it.
  10. 20. A location that is denoted by a capital letter. It has no size and is shown as a dot.
Down
  1. 1. A section of a circle. The portion of a disk enclosed by two radii and an arc.
  2. 2. A transformation in which an object moves a certain distance. The initial figure is congruent to the final image and distance and orientation is preserved.
  3. 3. A flat, two-dimensional surface. They can extend horizontally or vertically.
  4. 7. A tringle that has two sides of equal length. Two congruent legs and sides.
  5. 9. A transformation that produces an image that is the same shape as the original. However, the image is a different size based on a scale factor.
  6. 10. A line that touches a point at a curve. It does not cross or intersect the curve.
  7. 11. A point where all three medians of a triangle intersect. The medians are the segments that connect a vertex to the midpoint of the other side.
  8. 12. A line from the center of a polygon at right angles. It extends from the center to any of its sides.
  9. 15. A line segment on a circle. It extends to the perimeter of the circle from the center point.
  10. 17. A line that passes through a circle. It intersects two points on the curve.