The point (-1,2) is on the circle whose center is (4,1). What is the radius?

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25-02-2017
Mathematics

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The point (-1,2) is on the circle whose center is (4,1). What is the radius?

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wolf1728 wolf1728 · Answer 1 · 2017-02-25T02:07:33+01:00

wolf1728 wolf1728

25-02-2017

(4,1) (-1, 2)
Distance = Square Root ( (X difference)^2 + (Y difference)^2 )

Distance = Square Root ((5^2) + (1 -2)^2)
Distance = Square Root ((25) + (-1^2))
Distance = Square Root (25 +1)
Distance = Square Root 26
Radius = 5.0990195136

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