Geometry Puzzle

2. an object having a three-dimensional shape like that of a wire wound uniformly in a single layer around a cylinder or cone, as in a corkscrew or spiral staircase
7. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet
11. arranged in or extending along a straight or nearly straight line
13. a geometric entity that has both magnitude and direction
14. a four-sided figure
15. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere
16. the outermost parts or boundary of an area or object
19. how many times to use that number in a multiplication
20. lying on the same line

1. branch of mathematics
3. an algebraic expression of the sum or the difference of two terms
4. is the study of mathematical structures that can be considered "discrete" rather than "continuous"
5. expression that uses a root
6. is defined as the mean value which is equal to the ratio of the sum of the number of a given set of values to the total number of values present in the set
8. part of a whole or, more generally, any number of equal parts
9. Refers to an object inside a geometric figure, or the entire space inside a figure or shape
10. a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center)
12. a set of numbers arranged in rows and columns so as to form a rectangular array
17. the area of variation between upper and lower limits on a particular scale
18. a measure of central tendency that represents the average of a set of data