document.write( "Question 344802: how do i find the length of the diagonal of a computer screen that measures 28cm by 21 cm \n" ); document.write( "
Algebra.Com's Answer #246692 by ewatrrr(24785)\"\" \"About 
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Hi,
\n" ); document.write( "The diagonal forms a Right Triangle with sides 21cm and 28cm
\n" ); document.write( "Use the Pythagorean Theorem to solve for the length of the diagonal (hypotenuse)
\n" ); document.write( "\"a%5E2+%2B+b%5E2+=+c+%5E2\" where a and be are the sides and c the hypotenuse.
\n" ); document.write( ".
\n" ); document.write( "\"21%5E2+%2B+28%5E2+=+c+%5E2\"
\n" ); document.write( ".
\n" ); document.write( "\"441+%2B+784+=+c+%5E2\"
\n" ); document.write( ".
\n" ); document.write( "\"1225+=+c+%5E2\"
\n" ); document.write( "\"c=sqrt%281225%29\"
\n" ); document.write( ".
\n" ); document.write( "\"c+=+highlight%2835cm%29\"
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