four of the six vertices of the regular hexagon are choosen. the probability that the quadilateral formed is a recrangle is?
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Answer:
Correct option is
C
10
1
Let T represent the equilateral triangles
n(T)= No. if equilateral triangle, with six vertices ABCDEF of regular hexagon, are only two namely △ACE;△BDF
and n(S)= Total no. of triangles with six vertices are ==
6
C
3
=20
P(T)=
n(S)
n(T)
=
20
2
=
10
1
solution
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