In the coordinate plane, A = (4,-1), B = (6,2), and C = (-1,2). There exists a point Q and a constant k such that for any point P, [PA^2 + PB^2 + PC^2 = 3PQ^2 + k.]Find the constant k.

This is urgent, please help me out

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answer: i think the answer is etheir c or d but i don't know which one but have a good day!

step-by-step explanation:

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk

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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