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Mathematics 23 Online
OpenStudy (anonymous):

TEN POINTS ARE TAKEN ON A CIRCUMFERENCES OF A CIRCLE a) how many chords can be drawn by joining them in all possible ways? b) how many triangles can be drawn having these points as vertices? c) how many hexagons can be drawn? (PROBABILITY AND STATISTICS: PERMUTATION AND COMBINATION)

OpenStudy (anonymous):

the no of chords are the no of ways in which two points can be chosen among these 10 points 10C2 or (10 2) (combination) triangles 10c3 (combination(10,3) as the points are on a circle

OpenStudy (anonymous):

no. of hexagons?

OpenStudy (anonymous):

thanks

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