The answer depends on the number of sides in the polygon.
A convex polygon is one with no angle greater than 180 degrees. A non-convex polygon is one that is not without such an angle.
No. In a convex polygon, all the internal angles are smaller than 180 degrees.
The sum of all the interior angles is 720 degrees.
360 degrees - and it does not have to be convex.
A convex polygon.
360 degrees
No interior angle of a convex polygon can exceed 180 degrees. A non-convex polygon has at least one reflex angle (> 180 degrees). Alternatively, a polygon is convex if, given any two points on or inside the polygon, the straight line joining the two points must lie wholly on or inside the polygon. In a non-convex polygon, it is possible to find a pair of points such that the straight line joining them lies outside the polygon for at least some of its length.
The total number of degrees depends on what kind of polygon is in question. To learn the total degrees in a convex polygon, one can use the equation (n-2)180 where n is the number of sides.
A simple polygon that is not convex is called concave, non-convex or reentrant. A concave polygon will always have an interior angle with a measure that is greater than 180 degrees.
360 degrees - and it does not have to be convex.
No, a convex polygon cannot have an interior angle sum of 400 degrees. The sum of the interior angles of a convex polygon is always equal to (n-2) * 180 degrees, where n is the number of sides. Since the sum of the interior angles must be greater than 180 degrees for each interior angle, a convex polygon with an interior angle sum of 400 degrees would require at least 9 sides, which would make it a nonagon, not a polygon.
The exterior angles of any polygon add up to 360 degrees