Question 87688
A(-1, 2, 3) and B(4, -5, 6) 


{{{d= sqrt((4--1)^2 +(-5-2)^2 + (6-3)^2)}}}
{{{d= sqrt(5^2 +7^2 + 3^2) }}}
{{{d= sqrt(25+49+9)}}}
{{{d =sqrt(83)=9.1}}}


R^2  Retired from SCC