Geometry...
you must be learning about 30-60-90 degree triangles. You can show that the shortest side (opposite the 30 degree angle) is 1/2 the longest side (the hypotenuse, opposite the 90 degree angle) the longer leg (that is not the hypotenuse) is sqrt(3) times the shorter leg.
This is a review for the ISAT I will be taking, and yes I know that part. I just don't know how to do the this one, something with it is tripping me up.
@phi
look at the question. is side y the shortest leg (opposite 30 deg) or the longer leg (opposite 60 degree) ?
Its of the longest leg, opposite 60 degrees.
and you should try to remember: the shortest side (opposite the 30 degree angle) is 1/2 the longest side (the hypotenuse, opposite the 90 degree angle) and the longer leg (that is not the hypotenuse) is sqrt(3) times the shorter leg.
so I would focus on this fact: the longer leg (that is not the hypotenuse) is sqrt(3) times the shorter leg.
I know all that. But thanks for helping anyhow. I guess I was just looking for an actual number instead of just x times the sqrt. of 3.
If you were confused by using letters rather than numbers, you have to "tweak" your thinking... you should try to get used to multiplying "letters" so that x sqrt(3) seems like the obvious answer.
I am used to working with letters, but I wasn't used to looking for a variable on this particular type of question.
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