Across
- 2. Who declared March 14 National Pi Day?
- 6. A line connecting the center of the circle and one point on the circle
- 7. A line connecting two points of a circle and passing through the center of the circle
- 9. Which month do we celebrate Pi Day?
- 10. What is one kind of pie people eat to celebrate Pi Day?
- 13. The letter that stands for a number beginning with 3.14
- 14. What is the formula called for pi times diameter?
- 15. A 3-dimensional figure from the Greek for globe or ball
- 16. The earliest known reference to pi was written by a scribe named _______
Down
- 1. Which Greek mathematician discovered pi?
- 3. Ancient mathematicians knew the ratio of the circumference to the diameter of any circle was slightly more than what number?
- 4. In 1988, a museum in what US city celebrated Pi Day on a large scale?
- 5. Pi is the ______ of the circumference and the diameter
- 8. Plural for radius
- 11. In the first 31 digits of pi, there is no number _____
- 12. The famous scientist born on Pi Day
- 14. A shape in which we can measure circumference
- 16. What is the formula called for pi times radius squared?