First, find the sum of the interior angles using the formula: (𝒏 – 2) × 180 = (8 – 2) × 180 = 6 × 180 = 1080. Then divide this by the number of sides, eight: 1080 divided by 8 = 135.

The sum of the interior angles of an n -sided polygon is given by the formula: S = (n – 2) × 180º This is because every n -sided polygon can be cut into (n − 2) triangles, each with total internal ...

Add 180° to obtain the back azimuth. Subtract the interior angle to obtain the azimuth of the next line. If the result is greater than 360, subtract 360. Write down the azimuth on the sketch ...