Each polygon will always divide into two triangles fewer than the number of its sides. A hexagon will have four triangles. An octagon will have six triangles. So the sum of the interior angles of ...
The formula for calculating the size of an interior angle is: \(\text{interior angle of a polygon} = \text{sum of interior angles} \div \text{number of sides}\) The sum of interior angles is \((6 ...
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