- #1
land_of_ice
- 137
- 0
Trig right triangle solving question How do you know if you should pick tan, cot, etc for the last part?
if b = 2 , A =40 , find a,c, and B
I found all of them except for c , how do you get c
There's a part almost at the end that goes like tan40 degrees = a/2 and Cos 40 degrees = 2/c
Why do you know to pick Cos 40 , why not tan40 or cot of 40 for that last part there?
if b = 2 , A =40 , find a,c, and B
I found all of them except for c , how do you get c
There's a part almost at the end that goes like tan40 degrees = a/2 and Cos 40 degrees = 2/c
Why do you know to pick Cos 40 , why not tan40 or cot of 40 for that last part there?
Last edited: