Across
- 2. A quadrilateral whose opposite sides are equal
- 5. What is the name of an angle that is greater than 90 degrees
- 8. Triangular flat figure
- 9. Are all the angles of a square right?
Down
- 1. 2 radii of a circle are ...
- 3. What is the name of an angle that is less than 90 degrees
- 4. What is the angle called which is equal to 90 degrees
- 5. An elongated circle is called
- 6. A quadrilateral figure with all right angles
- 7. A mathematical constant expressing the ratio of the length and diameter of a circle