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Find the value of each variable. If your answer is not an integer, express it in simplest radical form

Mathematics
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hehe, same thing you see the 30, 60 and 90 angles?
yes

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Other answers:

|dw:1375657637657:dw|
so their relationship are |dw:1375657891270:dw|
that is where i started getting confused....
ok, which part throws you off?
|dw:1375657762568:dw|
^^that
what that means is just that the longest side is TWICE as much as the smallest side so "2a" is twice as much as "a" so if I had a 30-60-90 triangle whose smallest side were say 25 then the longest will be TWICE as much, or 50, thus |dw:1375658213907:dw|
if I had a 30-60-90 triangle whose smallest side were say "WHATEVER" my longest side will be "WHATEVER" x 2
still confused?
not on the 2a part but what about the a sqrt3
you just have to multipy the 20 with the sqrt of 3.
first, you have to divide 40 by 2, in order to find a. cos its 2a/2 > you will now find a. and then there it says "a sqrt of 3", so you just have to multiply a with sqrt of 3.
do u get it? :)
  • phi
btw, this video goes over 45-45-90 and 30-60-90 triangles. These videos are helpful
i have never used any terms relating to trig so no i dont really get it :( @phi what video??
  • phi
this one http://www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/v/intro-to-30-60-90-triangles
oh ok ill watch it
@highschoolmom2010 got the answer?
nope not even close
ok...you want to find x and y..right?
You know about trigonometry ratios?
yea.. i tried to do it and was told it was wrong so i got confused nope im in geometry
@phi it kinda helped me figure that sqrt 3 part bu tnot how to do the problem
|dw:1375807850273:dw|
  • phi
in that case watch the video where he does examples
or we can go using geometry
that would help better
ok
this is a 30-60-90 triangle
|dw:1375808252038:dw|
this means BC is AB*root 3
and AC is AB*2
okay?
ok
so BC=root3 *(x) =y
and AC=x(*2)=40
can u draw what u are saying im *more visual*
|dw:1375808671220:dw|
from this x=20 and put that x to find y
|dw:1375808797534:dw|
yes
like that ????
yes...you got it
so so what now....
x=20 and y=20 root3
HOLY COW I DID IT :DDDDD
hmm...Congrats....:D
you are welcome @highschoolmom2010

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