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Mathematics 13 Online
OpenStudy (anonymous):

The center of a circle is at the origin. An endpoint of a diameter of the circle is at (-3, -4). How long is the diameter of the circle? 5 10 25

OpenStudy (experimentx):

10

OpenStudy (hoblos):

r = sqrt[ 3^2 + 4^2 ] = sqrt(25 = 5 d=2r =10

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