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0 votes
2.6k views
in Mathematics by (71.6k points)

The numbers of diagonals that can be drawn by joining the vertices of an octagon is 

(A) 28 

(B) 48 

(C) 20 

(D) None of these

1 Answer

+1 vote
by (70.8k points)
selected by
 
Best answer

Correct option (C) 20

Explanation:

Required number of diagonals = 8C2 – 8 (Octangon should have been given to be convex)

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