document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=86363>Question 86363</A>: <I><SPAN STYLE=\"word-break: break-all;\"> CAN SOMEONE HELP ME PLEASE this problem is confusing me. i don't get how to do it.\r<BR>\n" );
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document.write( "triangle RST has vertices R(3,2),S(-1,6), and T(-5,-6).<BR>\n" );
document.write( "Use the Pythagorean Theorem to show that triangle RST is a right triangle </SPAN>\n" );
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document.write( "       R(3,2)=(X1,Y1);S(-1,6)=(X2,Y2); T(-5,-6)=(X3,Y3)<BR>\n" );
document.write( "     use distance formula to find RS,ST,&TR<BR>\n" );
document.write( "     RS squared =  (X2-x1)squared+(Y2-Y1)squared= (-4)squared+(4)squared=16+16=32<BR>\n" );
document.write( "     ST squared=(X3-X2)squared+(Y3-Y2)squared= (-4)squared+(-12)squared=16+144=160<BR>\n" );
document.write( "     TR squared=(X3-X1)squared+(Y3-Y1)squared= (-8)squared+(-8)squared=64+64=128<BR>\n" );
document.write( "     from the above we can conclude that RS squared+TR squared = ST squared<BR>\n" );
document.write( "      therefore RST is a right triangle.<BR>\n" );
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