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Mathematics 9 Online
OpenStudy (anonymous):

Geometry...

OpenStudy (anonymous):

OpenStudy (phi):

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.

OpenStudy (anonymous):

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.

OpenStudy (anonymous):

@phi

OpenStudy (phi):

look at the question. is side y the shortest leg (opposite 30 deg) or the longer leg (opposite 60 degree) ?

OpenStudy (anonymous):

Its of the longest leg, opposite 60 degrees.

OpenStudy (phi):

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.

OpenStudy (phi):

so I would focus on this fact: the longer leg (that is not the hypotenuse) is sqrt(3) times the shorter leg.

OpenStudy (anonymous):

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.

OpenStudy (phi):

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.

OpenStudy (anonymous):

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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