Across
- 3. A quadrilateral with two pairs of parallel sides
- 5. The longest side of a right triangle
- 8. A three-dimensional shape with circular bases and one curved surface
- 12. The sum of all sides of a polygon
- 13. A polygon with three sides
- 14. The distance from the center of a circle to any point on its circumference
Down
- 1. The amount of space inside a shape
- 2. A part of the circumference of a circle
- 4. A transformation that flips a figure over a line
- 6. A flat surface that extends infinitely in all directions
- 7. bisector, A line or segment that divides an angle into two equal parts
- 9. A four-sided polygon with opposite sides equal
- 10. A point where two or more lines meet
- 11. A line segment joining two points on a circle