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Question

Sum of all interior angles of a nonagon is


A

1260o

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B

1080o

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C

1460o

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D

1620o

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Solution

The correct option is

A

1260o

Sum of all interior angles of a polygon with n sides = (n - 2)× 180o

Therefore, sum of all interior angles of a nonagon

= (9 - 2)×  180o
= 7× 180o
= 1260o


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