# Triangles!

Nick George

Ranch Hand

Posts: 815

Eric Pascarello

author

Rancher

Rancher

Posts: 15385

6

Arjun Shastry

Ranch Hand

Posts: 1903

1

Nick George

Ranch Hand

Posts: 815

posted 12 years ago

Well, that looks like the right answer, howerver, i am a bit lost as to how it is obtained. Using law of cosines, I was able to get the following three equations from the three triangles:

s=length of BD (half of BC)

beta1+beta2=angle BAC

4s�=52-48cos(beta1+beta2)

s�=41-40cos(beta1)

s�=61-60cos(beta1)

after solving all three together, i found s to be something like 1.223.

can i have a little more explanation as to how you came at your answers?

s=length of BD (half of BC)

beta1+beta2=angle BAC

4s�=52-48cos(beta1+beta2)

s�=41-40cos(beta1)

s�=61-60cos(beta1)

after solving all three together, i found s to be something like 1.223.

can i have a little more explanation as to how you came at your answers?

I've heard it takes forever to grow a woman from the ground

Arjun Shastry

Ranch Hand

Posts: 1903

1