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ASTB gouge?

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magro

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I have the ASTB gouge marked ASTBgouge.pdf. But I thought there were three different ones available. Where are the other two?

Also, on the math section, question #47 is troubling me. I know the A=1/2base*height and you have to find the height of the triangle. I just dont know how they got the answer to be 9 * square root of 3.
 
Divide the triangle in two down the middle.
Solve for the height of the triangle. (x^2+3^2=6^2)...x=3*square root of 3.
Then multiply 1/2 the entire base*height...1/2 6*3*square root of 3.

1/2 of 18*square root of 3=...
9*square root of 3.
 
What you have is pretty much all you'll need. You can buy the Arco book at most major bookstores, but it won't help you as much as what you already have. It does give you a simplified version of what you'll see on the spatial apperception part of the test, so it's probably worth the $20 or so to pick it up.
 
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