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TNNG Group TitleBest ResponseYou've already chosen the best response.0
b ≈ 27.5, C ≈ 115.5, A ≈ 28.5 b ≈ 45.3, C ≈ 25.5, A ≈ 118.5 b ≈ 45.3, C ≈ 29.5, A ≈ 114.5 b ≈ 27.5, C ≈ 25.5, A ≈ 118.5
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.0
Law of Cosines?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.0
You arrived at a solution, @TNNG ?
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Use law of cosines to find b then use law of sines to find the rest of angles.
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
ok so just use to law of cosines and i should get the answer
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Well, you're not finished, since you still have to find A and C so use law of sines for this.
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
i don't get it i got the D for my answer is that correct
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
What don't you get?
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
the law of sines
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
The Law of Sines: \(\Large \dfrac{\sin A}{a} =\dfrac{\sin B}{b} =\dfrac{\sin C}{c}\)
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Familiar with it?
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
i know that but i don't get how to plug it is plus i tried it again and got Choice B
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.0
Well, you could certainly use the law of Cosines to arrive at all the other missing parts of the triangle, but that's really cumbersome, compared to the simpler looking law of sines.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Yeah, it's only way to find the b. You just have to use it once, then use law of sines and you're good to go. You don't have to use entire formula, just use part of it, like \(\dfrac{\sin B}{b} = \dfrac{\sin C}{c}\) Is this clear?
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
The law of tangents is really cumbersome compared to the law of cosines :P
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
ok so i know b=27.5
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
so figure out that a = 28.5
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
No, no, you already have the given value of a, so just use law of sines to find the angle.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Now you know a, b, c, and B. Now all you need to do is find A and C.
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
is the angle 25.5
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
None, not what I get.
 one year ago

pooja195 Group TitleBest ResponseYou've already chosen the best response.0
b^2 = a^2 + c^2  2accosB b = 27.5
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Wait, you're right, angle C is close to 25.5º. My bad. Now find the other angle.
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
180º  (A + C) = B
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
so i had it right the first time
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
Yes! Is this clear?
 one year ago

geerky42 Group TitleBest ResponseYou've already chosen the best response.1
You have to do math, though. You can't just guess. Just saying.
 one year ago
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