The vertices of triangle PQR are # P(-4, -1), Q(2,9), and R(6,3)#. #S# is the midpoint of #\bar(PQ)# and #T# is the midpoint of #\bar (QR)#. How do you prove that #\bar(ST)# is || #\bar (PR)# and #ST = 1/2 PR#?
1 Answer
Dec 6, 2017
Please see below.
Explanation:
We have
Further, length of
As
Similarly as
As slope of
hence
Further,