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
360 degrees - and it does not have to be convex.
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.
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.
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.
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