Mathematics Crossword Puzzle

2. The reciprocal of the cosine function.
5. The point where two lines intersect.
7. The number of square units that cover the surface of a three-dimensional object.
8. The measure of the space inside a three-dimensional object.
10. The ratio of the adjacent side to the hypotenuse in a right-angled triangle.
15. A polynomial of degree zero.
16. The difference between consecutive terms in an arithmetic progression.
17. The measure of space occupied by a three-dimensional object.
18. A sequence of numbers where the difference of any two successive members is a constant.
19. The ratio of the opposite side to the hypotenuse in a right-angled triangle.

1. The coefficients of the variables in an equation.
3. The sum of the first 'n' terms in an arithmetic progression.
4. The process of dividing polynomials.
5. The first term of an arithmetic progression.
6. A polynomial with three terms.
9. A system with no solution or infinite solutions.
11. An expression that represents a mathematical relationship between two variables.
12. The sum of the areas of all surfaces of a three-dimensional object.
13. The branch of mathematics that deals with the relationships between the angles and sides of triangles.
14. The highest power in a polynomial equation.