times~{3}~=~540^\circ\) The number of triangles in each polygon is two less than the number of sides. The formula for calculating the sum of interior angles is: \(({n}~-~{2})~\times~180^\circ ...
A pentagon contains 3 triangles. The sum of the interior angles is: All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is ...
The second method is to use the formula: sum of interior angles = (𝒏 – 2) × 180. This gives (10 – 2) × 180 = 1440 Image caption, Find the sum of the interior angles of a 26-sided polygon.
The sum of the interior angles is: All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: \(\text{interior angle of a polygon} ...
A pentagon contains 3 triangles. The sum of the interior angles is: All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is ...
A pentagon contains 3 triangles. The sum of the interior angles is: All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is ...
Calculating the size of each exterior angle of regular polygons The formula for calculating the size of an exterior angle of a regular polygon is: \({exterior~angle~of~a~regular~polygon}~=~{ ...
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