uri
  • uri
In figure 1if sin theta =0.5,what is the length of BC?
Mathematics
chestercat
  • chestercat
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uri
  • uri
|dw:1341857013568:dw|
saifoo.khan
  • saifoo.khan
sin theta = opp/hypotenuse
Diyadiya
  • Diyadiya
\[\sin \theta= \frac{opposite~side}{hypotenuse}\]

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More answers

saifoo.khan
  • saifoo.khan
\[\sin (0.5) = \frac{1}{AB}\]Solve.
uri
  • uri
I don't want the length of AB,I want the length of BC! @saifoo.khan
saifoo.khan
  • saifoo.khan
After you have AB, use Pythagoras to find it.
uri
  • uri
if i get the value of theeta like theeta =arcsin(1/2) then i use tan theeta to find it how will i do it then @saifoo.khan
saifoo.khan
  • saifoo.khan
Look, sin x = opp/hyp. and you are given sin x = 1/2 This means that opp is 1 and hyp is 2.
saifoo.khan
  • saifoo.khan
Agree?
saifoo.khan
  • saifoo.khan
Now: b^2 + p^2 = h^2 1^2 + p^2 = 2^2 you will get p.
uri
  • uri
\[\tan \Theta = perpendicular \div base \]
uri
  • uri
|dw:1341858263323:dw|
saifoo.khan
  • saifoo.khan
tan = opp/adj.
saifoo.khan
  • saifoo.khan
You said you have to do it directly. -_-
uri
  • uri
|dw:1341858302889:dw|
uri
  • uri
BC=1.73 answer right
saifoo.khan
  • saifoo.khan
1.83
uri
  • uri
Wrong answer! :D i dont have this Option :) a)1.25 b)1.73 c)1.41 d)1.50
saifoo.khan
  • saifoo.khan
Ugh! let me check.
Diyadiya
  • Diyadiya
1.73 is right :D
saifoo.khan
  • saifoo.khan
If diya says it's correct. Then i will go with her.
uri
  • uri
huh? And when i said? :P
saifoo.khan
  • saifoo.khan
No, you were good for nothing.
saifoo.khan
  • saifoo.khan
Infact, you are good for nothing. :D
Diyadiya
  • Diyadiya
Well, like @saifoo.khan said by pythagorus theorem 2^2 = BC^2 + 1^2 BC^2= 2^2-1^2 BC^2= 4-1=3 BC = \(\sqrt{3}\)=1.73
Diyadiya
  • Diyadiya
:D
saifoo.khan
  • saifoo.khan
Perfect. so i must have made a tiny mistake.
uri
  • uri
You did not know how to solve IT!! @saifoo.khan i tried to do! you should appreciate me..instead of degrading! :/
saifoo.khan
  • saifoo.khan
@uri , Okay. C'mon now.. Don't take things seriously. I was kidding..
saifoo.khan
  • saifoo.khan
@uri , i really appreciate your math solutions.. They are mind blowing..
uri
  • uri
K.

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