Maths Crossword

1. ______ Trials is an experiment in which a single action, such as flipping a coin, is repeated identically over and over
2. The product of a given integer and all smaller positive integers
3. German word for number
4. A graph of paired data in which the data values are plotted as (x, y) points
5. The point at which the three (possibly extended) altitudes of a triangle intersect
8. Two similar ways of indicating direction
10. A sharp point on a curve
12. A U-shaped curve
14. A flat surface extending in all directions
15. The number , or 1 followed by a googol number of zeros
17. ______ is a solution of a simplified version of an equation that does not satisfy the original equation
18. A curve shaped like a spring
19. The horizontal line drawn as part of a fraction or radical

1. A cycloid hanging downwards
6. To cover a plane with identically shaped pieces which do not overlap or leave blank spaces
7. A polygon with eleven sides
9. The region between two concentric circles which have different radii
10. A line segment, ray, or line that extends from a vertex of a triangle to the opposite side
11. Study of change
13. The line segment from the center of a regular polygon to the midpoint of a side
16. ______ is a technique for finding the volume of a solid of revolution