Across
- 3. The distance around a figure, equal to twice the length plus twice the width.
- 6. A four-sided figure where opposite sides are equal.
- 8. A straight line segment whose endpoints both lie on the curve.
- 10. A three-sided figure.
- 11. A four-sided figure with equal sides.
Down
- 1. A line joining two points.
- 2. A tool used to draw circles.
- 4. A unit of measurement for the length of sides.
- 5. A straight line from the center to the circumference of a circle or sphere.
- 7. A figure with one side and no angles.
- 9. A six-sided polygon.