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What is the number of diagonals in a regular polygon of 10 sides?
1. 32
2. 35
3. 27
4. 30

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Correct Answer - Option 2 : 35

Given:

A regular polygon of 10 sides

Formula used:

Number of diagonals in a regular polygon of ‘n’ sides = ½ × n × (n – 3)

Calculation:

Here, n = 10

∴ Number of diagonals = ½ × 10 × (10 – 3) = 5 × 7 = 35.

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