Answer:
A 25 sided polygon or the mathematical name for it is an icosikaipentagon or a pentacosagon
Explanation:
So you firstly do 180-165.6=14.4° we need to do this as each interior angle adds up to 180° and 14.4° would be the value of one exterior angle. For all shapes, the total of all the interior angles will add up to 360° so then you do 360° divided by 14.4°= 25. This means that it is a 25 sided shape.