document.write( "Question 705897: PLEASE help. I am stuck on this question!!!!!!!!!!!!!\r
\n" ); document.write( "\n" ); document.write( "The plane x+ 2y +2z=4 intersects the positive coordinate axis OX,OY and OZ in three points A,B and C respectively.
\n" ); document.write( "A.) find the coordinates of the three A,B and C.
\n" ); document.write( "B.) find the area of the triangle ABC. \n" ); document.write( "
Algebra.Com's Answer #434853 by stanbon(75887)\"\" \"About 
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The plane x+ 2y +2z=4 intersects the positive coordinate axis OX,OY and OZ in three points A,B and C respectively.
\n" ); document.write( "A.) find the coordinates of the three A,B and C.
\n" ); document.write( "To find \"A\":
\n" ); document.write( "Let Y and Z = 0
\n" ); document.write( "A = (4,0,0)
\n" ); document.write( "To find \"B\"
\n" ); document.write( "Let X and Z = 0
\n" ); document.write( "B = (0,2,0)
\n" ); document.write( "To find \"C\":
\n" ); document.write( "Let X and Y = 0
\n" ); document.write( "C = (0,0,2)
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\n" ); document.write( "B.) find the area of the triangle ABC.
\n" ); document.write( "Find the length of the 3 sides.
\n" ); document.write( "Use Heron's formula:: Area = sqrt[s(s-a)(s-b)(s-c)] where s = (a+b+c)/2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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