9-1

sooo today im going to be doing my blog on 9-1 which is going to help you out alot when you are looking for the side lengths of a triangle. your going to use sin cos and tan.

to help remember the equations for this process you can use SOHCAHTOA.

sinx=opposite/hypotenuse(or however you spell it)

cosx=adjacent/hypotenuse(or however you spell it)

tanx=opposite/adjacent.

you can only use these formulas to find the side lengths of right triangles

you cant use the 90degree angle

now im going to do an example of this

Example: Find x and y

So now your going to solve for x and y. Your going to use the 37 degree angle. You will use the formula cosx=adjacent/hypotenuse, which is cos37=25/x, which is going to equal 31.303 degrees.

Then to solve for y you will use tanx=opposite/adjacent, which is tan37=y/25, which is going to equal 18.839 degrees.

Your answers are going to be x=31.303 degrees and y=18.839 degrees.