SOLUTION: Given A(1, 2) and B(5, 5), find the magnitude of vector AB.

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Question 87699: Given A(1, 2) and B(5, 5), find the magnitude of vector AB.
Found 2 solutions by rapaljer, stanbon:
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
A(1, 2) and B(5, 5)

Vector AB = (5-1)i + (5-2)j
Vector AB = 4i + 3j

Magnitute of AB = sqrt%284%5E2+%2B+3%5E2%29+=+sqrt%2825%29=5

R^2 Retired from SCC

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given A(1, 2) and B(5, 5), find the magnitude of vector AB.
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r = sqrt[(5-2)^2+(4-1)^2]
r = sqrt[ 9 + 9]
r = 3sqrt(2)
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Cheers,
Stan H.