Question

Find the sum of interiro angle of poylgoan of 18 sides

Answer 1

The sum of the measures of the interior angle of any polygon is the number of sides minus 2 multiplied by 180. A polygon with 18 sides has an interior angle sum of 2880 degrees.

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Answer 2

Sum of Interior angles of a n-sided polygon is given by :

$\framebox[1.1\width]{(n-2).180}$

For 18 sided polygon -

$(18-2) \times 180^\cdot\\\longrightarrow 16 \times 180= 2880^\cdot$