What is the sum of the measures of the interior angles of an octagon? degrees

The sum of the measures of the interior angles of an octagon can be calculated using the formula \((n - 2) \times 180\), where \(n\) is the number of sides. For an octagon, which has 8 sides, the calculation is \((8 - 2) \times 180 = 6 \times 180 = 1080\) degrees. So, the interior angles of an octagon add up to a whopping 1080 degrees! If you're ever working on a project and need to measure angles for an octagonal shape, it’s useful to remember that each interior angle of a regular octagon is 135 degrees. So you can imagine cutting your polygon into 8 equal slices, giving you that neat and equal angle every time!