One of the sides of a pentagon has length 12. which of the following points, when paired with (2,3), will make a side equal to this length
(14, 15)
(2, −9)
(−2, −3)
(−9, 2)

Given 2 points A(a,b) and M(k,l), the distance between them is found by the formula:



Let (k, l)=(2, 3), substituting in the above formula:





check each of the pairs given:

for (a, b)=(14, 15):



for (a, b)=(2, -9):



for (a, b)=(-2, -3):



for (a, b)=(-9, 2):



(2, -9)

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