in triangle ABC m

Question

in triangle ABC m<B=14 degrees, m<C=42 degrees and a=34
FInd the length of b to the nearest tenth

anonymous · Answer

@terenzreignz

terenzreignz · Answer

Okay, when you have two angles, first thing you wanna do, instinctively?
Find the third angle.

anonymous · Answer

m<A=124 degrees

terenzreignz · Answer

Okay, if you are Kath, then what's your determining pair?

anonymous · Answer

the a and A

terenzreignz · Answer

And the relevant pair?

anonymous · Answer

B and b

terenzreignz · Answer

yes.  So, set up your equation :)

terenzreignz · Answer

You're looking for a side-length (b)
so use the incarnation of the Law of Sines with the sides on top.

anonymous · Answer

b/sin 14 = 34/sin124 = 34 sin 14/ sin 124 =b

terenzreignz · Answer

Yes.  Exactly :)
You're getting good at this :D

anonymous · Answer

yes i know and its all thanks to you as long as you are telling me the steps i know what to do :) yay and o now should have 34(.2419)/.8290

anonymous · Answer

b=9.9211 rounded to the nearest tenth is 9.9

terenzreignz · Answer

I can't be telling you the steps forever, okay? 
In each successive problem, I'll leave one instruction to your intuition...

anonymous · Answer

but i just have two mre after this until tommorow when i believe we are doing law of cosines

terenzreignz · Answer

I think I gave you a heads-up on the Law of Cosines.

anonymous · Answer

yeah but i didnt get it