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OpenStudy (anonymous):
If the endpoints of the diameter of a circle are (-10, 12) and (12, 18), what are the coordinates of the center of the circle?
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OpenStudy (agent0smith):
The centre will be halfway between those two points, since the centre is halfway along the diameter. Use the midpoint formula to find it \[\Large \left( \frac{ x_1+x_2 }{ 2 }, \frac{ y_1+y_2 }{ 2 } \right)\]
OpenStudy (anonymous):
*facepalm* thank you
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