In a regular decagon, all the sides are the same length and all the angles are the same size.Let’s have a look at your bandstand design too, Kayla.What shape is it? KAYLA: It’s a hexagon.But ...

The interior angles in a hexagon sum to 720°. This is an irregular decagon. To work out what the interior angles in a decagon sum to, there are two methods. Image caption, The first method is to ...