What is the formula to find the number of diagonals in a regular polygon?
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What is the formula to find the number of diagonals in a regular polygon?
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Step-by-step explanation:
According to the formula, number of diagonals = n (n-3)/ 2. So, 11-sided polygon will contain 11(11-3)/2 = 44 diagonals. Example 2: In a 20-sided polygon, one vertex does not send any diagonals.