Question

In the polygon which all the angles are equal one outer angle is 12 degree how much is each inner angle how many sides does it have

Answer 1

Answer:

since the total sum of interior and the outer angle are 180, then, in order to have the inner three times the outer the inner will have to be135 and the outer angle 45 degree which fit an octagon ( the 8 sided polygon) which has inner angle of 135 and the outer angle 45 degree.