SOLUTION: Find the angle B in an oblique triangle in which a=31, b=15, and c=17

Question 227081: Find the angle B in an oblique triangle in which a=31, b=15, and c=17
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

Given:
Cosine law;

Let us isolate :
--->

}, Answer

Thank you,
Jojo
RELATED QUESTIONS
An oblique triangle has a side a= 6.5 in , side b = 6.0 in. and side c =3.5 in Find the... (answered by MathLover1)
find angle A of the oblique triangle with sides a=13, b=14, and... (answered by mducky2)
in an oblique triangle, find the side b if c =12, A = 50 degree 12', and B = 72 degree... (answered by stanbon)
Given oblique triangle ABC, find the length of c: b = 3 a = 4 angle C = 40� (answered by lwsshak3)
On an oblique triangle A=27.2 in., B=33.4 in., C=44.6... (answered by Edwin McCravy)
ΔABC is an isosceles triangle in which angles B and C are congruent. If m∠B =... (answered by josgarithmetic)
Sorry for the lact of picture...I don't know how to post it. I do know that it is an... (answered by stanbon)
find angle A of the oblique triangle with sides a=13, b=14, and c=15: find angle A of... (answered by jim_thompson5910)
Solve oblique triangle ABC having the given parts, and find its area B=100�12' C=15�48' (answered by solver91311)