document.write( "Question 258803: An equilateral triangle has sides of equal length. Determine whether the triangle with vertices (-1, -1), (2, 3), (-4, 3) is equilateral. \n" ); document.write( "
Algebra.Com's Answer #190522 by richwmiller(17219)\"\" \"About 
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(-1, -1), (2, 3), (-4, 3)
\n" ); document.write( "find distances between
\n" ); document.write( "(-1, -1), (2, 3)=distance 5
\n" ); document.write( "(-1-3)^2+ (-1-2)^2=c^2
\n" ); document.write( "4^2+3^2=16+9=25
\n" ); document.write( "sqrt(25)=5
\n" ); document.write( "(2, 3), (-4, 3)=distance 6
\n" ); document.write( "(-4-2)^2+(3-3)^2=36
\n" ); document.write( "sqrt(36)=6
\n" ); document.write( "(-1, -1), (-4, 3)=distance =5
\n" ); document.write( "(-1-(-4 ))^2+(-1-3)^2
\n" ); document.write( "3^2+4^2=25
\n" ); document.write( "sqrt(25)=5
\n" ); document.write( "If any are not the same it is not equilateral\r
\n" ); document.write( "\n" ); document.write( "sides 5 and 6
\n" ); document.write( "NOT equilateral
\n" ); document.write( " \n" ); document.write( "
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