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anonymous
 one year ago
Can someone prove to me how exactly is the other angle for this is 150???
anonymous
 one year ago
Can someone prove to me how exactly is the other angle for this is 150???

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I solved it up till 30 degrees but then they're saying the "since AC is the largest side" I don't get it

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.0do you remember your unit circle?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.0So do you remember that when we have sine of an angle, it can have two values?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea you minus 30 180 yea I know that but visually I just can't imagine it in this triangle

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.0yeah, that's how you get 150 degrees... If theta = 30, it means that angle ABC and angle ACB would be larger than 30 true? Since the ANGLE SUM of a triangle = 180 right? If dw:1434891872359:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait so what I'm understanding from this that sum of angle ABC and ACB is 150??

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.0not quite... Just remember that the angle that corresponds to the longest side of a triangle has the largest angle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok I still don't 100% get it. Okay like suppose I don't that there was possibly another length of AC that is longer. compare to when it is if you have our theta as 30 degrees. How do you prove that the other angle of theta would be 150 by calculation??

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434892380598:dw So when dealing with sine there are two values... but to test it, you consider the ambigous case. So if you have the other angles, you can add them all up and make sure that they equal to 180 (since the angle sum of a triangle = 180)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434892581440:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is this what you're saying..?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is what's given in my text book ofc I didn't understand it first but after some while I pictured it to be in that way as you drew in the unit circle diagram. The thing is trying to put our triangle into this unit cirle I can't imagine how I'd do that..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lets see dw:1434892824826:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0uhh.. you mean like this right? dw:1434892995285:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh no nvm, they showed you the formula using area.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I, though, haven't seen the formula using area.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I know the answer sir And the know the methods used to find 30 what I'm looking for is the proof for 150 degrees

hartnn
 one year ago
Best ResponseYou've already chosen the best response.130 can not be the largest angle of any triangle. The sum of 3 angles must be 180.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1if 30 is the largest, the other 2 angles are less than 30 and their sum is max 90...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@hartnn Wait wait lets not go there. can we just stick to the unit circle? it's much easier for me to understand. Look cause I'm trying to put the triangle from our original question into the unit circle. dw:1434894775692:dw I just wanna know if I'm visually imagining it correctly. Thats all

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1yes thats correct. so now label side AC

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434895631747:dw @hartnn Thanks a BUNCH!
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