2. On the plane, there are 6 different points (no 3 of them are lying on the same line). How many segments can be drawn by joining all the points? 3. The School Chess Club has 7 members. In how may many ways ca 3 members of the club be chosen for the Rules committee?
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For the first question, we have 6 different points on the plane. Show more…
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Six friends want to play enough games of chess to be sure everyone plays everyone else. How many games will they have to play? On the plane there are 6 different points (no 3 of them are lying on the same line). How many segments do you get by joining all the points? 3. On a circle there are 9 points selected. How many triangles with edges in these points exist?
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