document.write( "Question 301720: Refer to right triangle ACB. I measure of angle A=45degrees, and AB= 30 what is the length of AC?
\n" ); document.write( "I used rules for special triangles 45/45/90 so is it 30/sqrtof2=x/1 ==ACor i s it 30/1=x/sqrt 2=??
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Algebra.Com's Answer #216345 by richwmiller(17219)\"\" \"About 
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If the two sides are 30 and the third the hypotenuse is
\n" ); document.write( "sqrt(2*30^2)
\n" ); document.write( "sqrt(1800)=30*sqrt(2)=hypotenuse
\n" ); document.write( "or if the hypotenuse is 30
\n" ); document.write( "2a^2=30^2
\n" ); document.write( "2a^2=900
\n" ); document.write( "a^2=450
\n" ); document.write( "a=sqrt(450)
\n" ); document.write( "a=15sqrt(2)
\n" ); document.write( "the two equal sides are 15sqrt(2)\r
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