6
Its not a do-decagon its a dodecahedran!!
It has 3 interior angles that add up to 180 degrees
A nonagon has 9 interior angles that add up to 1260 degrees
A decagon has 10 sides
10 sides
6
Its not a do-decagon its a dodecahedran!!
It depends on whether or not the decagon is a perfect decagon or a complex decagon. However, a perfect decagon has no acute angles.
It has 3 interior angles that add up to 180 degrees
A nonagon has 9 interior angles that add up to 1260 degrees
A decagon has ten vertices.
A decagon has 10 sides
A decagon has 10 sides
A decagon has 10 sides
There are 1440 degrees in a decagon.
A decagon has 10 sides.