Question

The sum of all interior angles of 9 sided polygon is:

A. 1260°

B. 1440°

C. 1620°

D. None of these

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Answer 1

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The sum of all interior angles of 9 sided polygon is:

A. 1260°

B. 1440°

C. 1620°✓

D. None of these

Answer 2

Answer:

A) 1260°

Step-by-step explanation:

Interior angle of 9sided polygon is 140°

add: 140+140+140+140+140+140+140+140+140

= 1260°