Kaitlyn's Blog #6

I will be going over section 9-1

In this section, we learned how to find the angles and sides of a triangle. There are many formulas for this so it would make it easier to remember SOHCAHTOA!

sin(theta)=opposite/hypoteneuse sec(theta)=hypoteneuse/opposite
cos(theta)=adjacent/hypoteneuse csc(theta)=hypoteneuse/adjacent
tan(theta)=opposite/adjacent cot(theta)=adjacent/opposite

Example: A=90 degrees, B=52 degrees, a=5

First you want to find your other angle, angle C. To do this you would subtract 90 and 52 from 180. angle C=38

Then you want to find side c. Use your angle 52, and since c is adjacent and your other side is the hypoteneuse, then you would find this by using cos=adjacent/hypoteneuse.
side c=3.078

Then you need to find side b. Use your angle 52, and since b is opposite and your other side is the hypoteneuse, you would find this by using sin=opposite/hypoteneuse
side b=3.940