Question 154097
Let P and Q 2 points/ P=(a,b) Q=(c,d)
then

Midpoint is ((a+c)/(2),(b+d)/(2))
and distance between P and Q = {{{d(P,Q)=sqrt((c-a)^2+(d-b)^2)}}}

if P=(-2,4)and Q= (-3+3* sqrt(3),7)

Midpoint is ((-5+3* sqrt(3))/2,11/2)}}}
{{{d(P,Q)=sqrt( (3*sqrt(3)-1)^2+3^2)}}}=
{{{sqrt(27+1-6*sqrt(3)+9)=sqrt(37-6*sqrt(3))}}}