Triangle pqr has vertices p(-3, -1), q(-1, 7), and r(3, 3), and point a and b are midpoints of pq and rq, respectively. use coordinate geometry to prove
(a)
ab is parallel to pr
(b)
ab is half the length of pr

include graph photos

c > -10.55

step-by-step explanation:

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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