Across
- 2. A quadrilateral with one pair of parallel sides.
- 4. An angle that measures less than 90 degrees.
- 9. The distance around the edge of a circle.
- 11. The ratio of the size of an image to the size of the original object.
- 12. The measurement of something from side to side; the horizontal extent.
- 13. The distance from the center to any point on the boundary of a circle or sphere.
- 14. A triangle with at least two sides of equal length.
- 15. A point where two or more lines, edges, or rays meet, especially in geometry.
Down
- 1. If a triangle is not a right triangle, then the square of one side is not equal to the sum of the squares of the other two sides.
- 3. The boundary or border of something, where two surfaces meet.
- 5. A symmetrical, oval-shaped curve, formed by the intersection of a cone and a plane.
- 6. A parallelogram with all four sides of equal length.
- 7. A segment that has a magnitude, a direction and a sense.
- 8. A five-pointed star formed by connecting the vertexes of a regular pentagon, often associated with mysticism or symbolism.
- 9. The direction in which the hands of a clock move, typically to the right.
- 10. Symbols used in pairs to enclose additional information or clarification.