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Find the value of the combination.

How many straight lines can be drawn through 20 points, of which no three lie on any one straight line?

2 Answers

2 votes

Answer:

190

Explanation:

User Steve Hanov
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4 votes
Using the formula 20(20-1)/2, we can get the answer. Plugging it in, we have (19*20)/2, which is 190
User Assassinbeast
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