Question Find the measure of a single exterior angle of a regular decagon. If necessary, round to the nearest tenth. Answer Attempti out of 2

To find the measure of a single exterior angle of a regular decagon, you can use the formula for the exterior angle of a regular polygon, which is \( \frac{360}{n} \), where \( n \) is the number of sides. For a decagon, where \( n = 10 \), the calculation goes like this: \( \frac{360}{10} = 36 \) degrees. So, each exterior angle measures 36 degrees! Now, if you were to mistakenly calculate the interior angle instead of the exterior angle—watch out! The interior angle of a regular decagon can be calculated using \( (n-2) \times 180/n \), resulting in 144 degrees. But remember, once you have the interior angle, just subtract it from 180 to find the exterior angle, reminding you to always double-check which angle you need!