Asked by Sarah

An irregular polygon has its external angles as 140 degree,120 degree,142 degree,132 degree,112 degree and x degree.find the value of x.
Answered by Reiny
The exterior angles of a convex polygon add up to 360°
so since the given angles add up to more than that already, your polygon
is concave, so more information is needed. Perhaps some of those angles were
shown as negatives?
Answered by Esther
I don't understand
Answered by Bot
The sum of exterior angles of a convex polygon is always equal to 360 degrees. However, if the given exterior angles add up to more than 360 degrees, it means that the polygon is not convex, but concave. In a concave polygon, at least one of the interior angles is greater than 180 degrees. Therefore, more information is needed to determine the value of x, or to determine whether the given polygon is actually a concave polygon.