Nerdgirl
  • Nerdgirl
HELP ASAP!!!! ANYONE!!!!!! WILL FAN AND MEDAL!!! Use the law of sines to find the missing angle of the triangle (drawing is shown below): A. 110.0 B. 153.9 C. 26.1 D. 70.0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Nerdgirl
  • Nerdgirl
|dw:1433426172396:dw|
Nerdgirl
  • Nerdgirl
@Johnica @Australopithecus
Nerdgirl
  • Nerdgirl
ANYONE!!

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More answers

Nerdgirl
  • Nerdgirl
@Australopithecus can you help?
Nerdgirl
  • Nerdgirl
@vjohnny
Nerdgirl
  • Nerdgirl
Nobody wants to help me? :(
Nerdgirl
  • Nerdgirl
@darkb0nebeauty
anonymous
  • anonymous
You want to find the missing angle but there are 2 missing angles, which one do you want?
anonymous
  • anonymous
i would say C or D because it wouldnt be alot high
Nerdgirl
  • Nerdgirl
oh sorry I need to find the measure of angle b
anonymous
  • anonymous
|dw:1433427360957:dw|
anonymous
  • anonymous
ok
Nerdgirl
  • Nerdgirl
angle b
Australopithecus
  • Australopithecus
Well if you find one you know the other one
anonymous
  • anonymous
according to law of sines the ratio of the single of an angle to the side opposite to the angle is equal for all pairs \[\frac{\sin(C)}{AB}=\frac{\sin(A)}{BC}=\frac{\sin(B)}{AC}\]
anonymous
  • anonymous
that 40 is angle A or is the side length?
Nerdgirl
  • Nerdgirl
angle a
Nerdgirl
  • Nerdgirl
@darkb0nebeauty @Nishant_Garg
Nerdgirl
  • Nerdgirl
I got D is that right?
Nerdgirl
  • Nerdgirl
Please I've been at this for hours I just need an answer
anonymous
  • anonymous
I think you should first calculate angle C \[\frac{\sin(C)}{19}=\frac{\sin(4)}{13}\] Use this to find sin(C) after that you can do \[\frac{\sin(B)}{AC}=\frac{\sin(40)}{13}\]\[\frac{\sin(B)}{AC}=\frac{\sin(C)}{19}\] this would be a linear equation in 2 variable once u find C then u can solve it using substitution methods
Nerdgirl
  • Nerdgirl
Is D right?
anonymous
  • anonymous
Idk, I haven't calculated it
Nerdgirl
  • Nerdgirl
*sigh* this is ridiculous.
Australopithecus
  • Australopithecus
I will show you how to solve this problem
Nerdgirl
  • Nerdgirl
I just need to know if d is right or not
Nerdgirl
  • Nerdgirl
y'know what, Nvm, I finished it. no medals for anybody
Australopithecus
  • Australopithecus
\[\frac{\sin(A)}{a} = \frac{\sin(B)}{b} = \frac{\sin(C)}{c}\] |dw:1433428299531:dw| so you will have an equation set up as follows: sin(B)/b = sin(C)/19 = sin(40)/13 You will need to solve for C then remember that 180 = Angle A + Angle B + Angle C Then you can solve for angle B
Australopithecus
  • Australopithecus
yes your answer is correct sorry just woke up

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