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A polygon with 12 sides can be triangulated into _______

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A polygon with 12 sides can be triangulated into _______

(a) 7

(b) 10

(c) 5

(d) 12

I have been asked this question in an online interview.

My enquiry is from Strong Induction and Well-Ordering topic in division Induction and Recursion of Discrete Mathematics

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Best answer
Correct choice is (b) 10

Easy explanation: A simple polygon with n sides can be triangulated into n-2 triangles, where n > 2.

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