David S. answered 07/20/20
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There are C(25, 2) ways of choosing a set of 2 points from a set of 25, and C(25, 2) = 25 * 24 / 2 = 300.
N K.
asked 07/20/20A circle has 25 points. How many lines can be formed by connecting any 2 points on the circles? Please answer soon.
David S. answered 07/20/20
Experienced math tutor
There are C(25, 2) ways of choosing a set of 2 points from a set of 25, and C(25, 2) = 25 * 24 / 2 = 300.
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