Question on: JSS2 Mathematics - Angles

Calculate the sum of the interior angles of a pentagon.

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The formula to find the sum of the interior angles of an 

𝑛-sided polygon is:

Sum of interior angles= (𝑛−2)×180∘

 

For a pentagon (𝑛=5):

Sum of interior angles

=(5−2)×180∘

=3×180∘

=540∘

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