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TNNG
 one year ago
Best ResponseYou've already chosen the best response.0b ≈ 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

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

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

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

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

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

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

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

terenzreignz
 one year ago
Best ResponseYou've already chosen the best response.0Well, 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.

geerky42
 one year ago
Best ResponseYou've already chosen the best response.1Yeah, 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?

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

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

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

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

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

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

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

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

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