Question
What is the number of diagonals that can be drawn by joining the vertices of a hexagon?
What is the number of diagonals that can be drawn by joining the vertices of a hexagon?
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Solution
The correct option is B 9
A line is obtained by joining two vertices.
So out of 6 vertices of the hexagon, the number of line segments = C(6,2) = 15
But out of these 6 are sides, so the remaining must be diagonals.
= 15 - 6 = 9
9
A line is obtained by joining two vertices.
So out of 6 vertices of the hexagon, the number of line segments = C(6,2) = 15
But out of these 6 are sides, so the remaining must be diagonals.
= 15 - 6 = 9
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