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Question
The expression for the number of diagonals that we can make from one vertex of a n sided polygon is ______.
Options
2n + 1
n – 2
5n + 2
n – 3
Solution
The expression for the number of diagonals that we can make from one vertex of a n sided polygon is n – 3.
Explanation:
Since, the vertex is formed by joining two sides. A diagonal is a line segment joining the two opposite vertex. So, the number of diagonals formed by one vertex = n – 3.
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