trigonometry

1. c= a*2 + b*2
4. having common bounday
7. the ratio of the length of the opposite side to the length of the adjacent side.
10. angle formed between the horizantal line of looking downwards.
13. what something is used for
14. space between two lines that intersect
15. study of relations between sides and angles of triangles
18. a triangle with two equal sides
20. type of triangle that has one of its angles equal to 90 degrees.

2. opposite of the right angle.
3. angle formed inside an imaginary triangle when looking up at an object.
5. trigonometric function that is equal to the ratio of the side adjacent to an acute angle
6. a measure for arcs and angles
8. soh cah toa.
9. angle between the horizontal and line from the object to the observer's eye
11. allow more than one function to be implemented with the same key.
12. trigonometric function that is equal to the ratio of the side opposite a given angle
16. across from the given angle
17. measurement of someone or something from head to toe/ base to top
19. the reciprocal of the cosine