TRIGNOMETRY TEST DUE AT 10:02 PLZ HELP ME I DONT WANT TO FAIL THIS ONE!!! PLEASE SOMEONE MATH EASY HELP 123 ADDING SUBTRACTING

7. 33 degrees

8. 17 degrees

9. 41 degrees

10. 75 degrees

This is all i can do I'd have to look up how to do 11-13

I hope this helps a little

Step-by-step explanation:

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.