Crossword Puzzle

2. plural form of axis.
4. vertical axis of a system of coordinates.
5. the continuous line forming the boundary of a closed geometric figure.
8. an angle of 90 degrees.
11. horizontal axis of a system of coordinates.
12. each of four parts of a plane, sphere, space, or body divided by two lines or planes at right angles.
19. the part of a line included between two points.
20. the measurement or extent of something from end to end.
21. the exact middle point.
23. the process of combining matrices, vectors, or other quantities under specific rules to obtain their product.
26. the measurement or extent of something from side to side.
27. a point or value that marks the end of a ray or one of the ends of a line segment or interval.
28. a plane figure with four straight sides and four right angles.
29. points lying in the same straight line.
32. letters and other general symbols are used to represent numbers and quantities in formulae and equations.
33. a fixed reference line for the measurement of coordinates.

1. an imaginary flat surface through or joining material objects.
3. the process of dividing a matrix, vector, or other quantity by another under specific rules to obtain a quotient.
6. tringles with right angle.
7. the process of taking a matrix, vector, or other quantity away from another under specific rules to obtain the difference.
9. right angle to a vertical plane.
10. a plane figure with four equal straight sides and four right angles.
13. also known as the + sign
14. right angles to a horizontal plane.
15. a subject or range of activity or interest.
16. the branch of mathematics concerned with the properties and relations of points, lines, etc.
17. the process of combining matrices, vectors, or other quantities under specific rules to obtain their sum.
18. a plane figure with at least three straight sides and angles, and typically five or more.
22. a plane figure with three straight sides and three angles.
24. triangles having 2 sides of equal length.
25. a quadrilateral with only one pair of parallel sides.
30. also known as the - sign
31. a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.