Across
- 3. A line segment (or length) joining two points on a circles circumference and passes through the circle's center (twice the length of the radius)
- 8. Distance around a circle (the perimeter)
- 9. Part of a line between two points
- 10. A triangle with two equal length sides (and two equal internal angles)
- 13. Point at which two line segments intersect (forming an angle)
- 14. A polygon having six sides and six angles
- 15. A quadrilateral having both pairs of opposite sides parallel to each other.(Note: squares and rectangles are also quadrilaterals.)
- 18. Triangle A triangle with all three sides of equal length (each internal angles = 60°)
Down
- 1. Line segments that never intersect (they are always the same distance apart)
- 2. A polygon with four sides
- 4. Distance (line segment) from center of a circle to any point on that circle's circumference.
- 5. A triangle with all three sides with different lengths
- 6. Angle smaller than 90 degrees
- 7. A location in space - a dot on a piece of paper
- 11. Angle larger than 90 degrees
- 12. The part of a straight line considered as originating at a point on the line and as extending in one direction from that point.
- 15. A polygon with 5 sides and 5 angles
- 16. Angle An angle that measures 90 degrees
- 17. A polygon having eight angles and eight sides
- 19. Connects two points via the shortest path and continues indefinitely (forever) in both directions