A Regular Polygon
octagon interior=135 exterior=45
An equilateral triangle.
Square or rectangle
Hint: in a regular polygon interior plus exterior = 180o, always.
4 such as a square
Exterior angles are supplementary with interior angles, so 180-30=150
If exterior angles are 120 then interior angles must be 60 so you have an equilateral triangle
Interior angles 178 so exterior angles 2. Number of sides of any regular polygon = 360/exterior angle You polygon has 180 sides. Bet you're glad you didn't have to sketch it!
If the polygon has n sides, each exterior angle is 360/n degrees.The interior angle is 180 less exterior angle.