Pi Day Crossword

3. A solid figure with two congruent and parallel circular bases connected by a curved surface.
4. A chord that passes through the center of a circle or sphere.
6. A segment with endpoints on the circle.
8. The set of all points in a plane that are the same distance from a given point called the center.
10. The measure of the amount of space enclosed by a three-dimensional figure.
13. The sum of the areas of all faces and side surfaces of a three-dimensional figure.
15. Digits are the single numbers used to represent values in math.
16. One of two or more words pronounced alike but different in meaning or derivation or spelling.
17. A solid figure with a circular base connected by a curved surface to a single vertex.
18. The number of square units needed to cover a surface.
20. Part of a circle that is defined by two endpoints.
23. The numerical factor of a term that contains a variable.

1. A unit of angular measurement equal to 180 degrees/pi or 57.296 degrees.
2. A region of a circle bounded by a central angle and its intercepted arc.
4. 1/360 of the circular rotation about a point.
5. A line segment from the center to a point on a circle or sphere.
7. A term without a variable.
9. A number that cannot be expressed as the ratio a/b, where a and b are integers and b is not equal to 0.
11. A comparison between two quantities, in which for every a units of one quantity, there are b units of another quantity.
12. A three-dimensional shape that's half of a sphere with one flat, circular side.
14. A set of all points in space equidistant from a given point called the center of the sphere.
19. The intersection of two noncollinear rays at a common endpoint.
21. Numbers that can be written as the ratio of two integers in which the denominator is not 0. All integers, fractions, mixed numbers, and percents are rational numbers.
22. The distance around a circle.