Math Crossword

2. The result of adding two or more numbers.
4. A line that a curve approaches but never reaches.
5. A 3-sided polygon (a flat shape with straight sides).
8. A value that you get closer and closer to, but never quite reach it.
10. Moving a shape, without rotating or flipping it. "Sliding".
13. A result that has been proved to be true (using facts that were already known).
14. When one shape becomes exactly like another if you flip, slide or turn it.
15. Is equal to 1 over tangent.
18. An idea that something never ends, it is sometimes used like a number but it is not really.
19. The amount of turn between two straight lines that have a common end point (the vertex).

1. Is equal to 1 over sine.
3. The study of numbers, patterns, space, and change.
6. An expression that has a square root, cube root, etc.
7. A diagram of values, usually shown as lines or bars.
9. A symbol for a number we don't know yet. It is usually a letter like x or y.
11. How steep a straight line is.
12. Where lines cross over.
15. The length of the adjacent side divided by the length of the hypotenuse.
16. Part of the circumference (edge) of a circle.
17. A straight line going through the center of a circle connecting two points on the circumference.