The law of cosines will help.
a,b,c are the sides of the triangle. From there you can get cos(theta) and from there get theta.
a=152.4cm b=same c=118.11cm Now I need the angles.
I'm building a chicken coop and can't figure out the the angles. I guess two semesters of algebra and trig two years ago doesn't do me any good now if I don't remember any of it. I think the problem is not remembering my calculator functions. I got 0.3875 for A, and I think I just need to hit COS but when I do it doesn't sound right. Maybe I'm way off. Anyway if someone could show their work I'd like to know where I went wrong.
Thanks alot for the help.
Edit:I'll try to show my work below to see where I went wrong.
,so
Hello, Jarod_C!
Your work is correct . . . take it a step further.
Find angles
I'll try to show my work below to see where I went wrong.
So: .
Then: .
The triangle is isosceles, so: .
Hence: .
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Check
Therefore: .
Tyvm, that's what I was needing. I'm still stumped on my calculator though. What function changes decimal from 0.3875 to
I think I'm going to lay off the ps3 because I used to be able to do this in my sleep.
Edit:LOL I'm rusty at this. I got my function by reading the problem. 03875 cos-1 = 67.2 deg. Thanks it really helped.