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OpenStudy (anonymous):
How many lines can be created linking 7 points on the circumference if a circle?
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OpenStudy (anonymous):
21
OpenStudy (anonymous):
how did you find the answer though?
OpenStudy (raden):
to get a line, the least we conecting 2 points it means 7C2
OpenStudy (anonymous):
|dw:1362457358664:dw||dw:1362457385177:dw| And so on. Notice the pattern? |dw:1362457432996:dw|
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