Answer:
The total length will be "10 units". A further explanation is given below.
Step-by-step explanation:
The given points are:
R(−2, 4)
S(3, 4)
T(3, −1)
On applying the distance formula,
⇒

⇒

⇒

⇒

⇒

and,
⇒

⇒

⇒

⇒

Now,
The total trail length will be:
=

=

=
