Calculate the sum of the interior angles of a n... - JSS2 Mathematics Angles Question
Calculate the sum of the interior angles of a nonagon (9-sided polygon).
Using the formula:
Sum of interior angles =(𝑛−2)×180∘
For a nonagon (𝑛=9:
Sum of interior angles
=(9−2)×180∘
=7×180∘
=1260∘
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