Charlie's.

This week we reviewed for our chapter test on Monday, then actually took the test on Tuesday and Wednesday; but on Thursday and Friday we took and reviewed 9-1 notes.
We have the 'word' that's going to help us remember...
( SOHCAHTOA )
... that
sin = opposite/hypotenuse
cos = adjacent/hypotenuse
tan = opposite/adjacent
then by knowing that sec is the reciprocal of cos we know that
sec= hypotenuse/adjacent &we know that csc is the opposite of sin
so csc=hypotenuse/opposite.
These formula's only work with right triangles.
We also did SUPER long word problems.

*For example on how to do this:
one leg of the right triangle ABC is 4 while the hypotenuse is 5 & angle B is 20 degrees. Find the second leg. First you draw the right triangle. Then you do sin20=opposite/hypotenuse. Which is sin20=x/5. mulitply 5 on both sides to get x=5sin20. which gives you 1.7