Question

This polygon can be changed from convex to concave by:

a) Removing one of the segments
b) Adding another segment
c) Changing an interior angle to a reflex angle
d) Changing an exterior angle to an acute angle

Answer 1

To change a convex polygon to concave, we can change an interior angle to a reflex angle.

Step-by-step explanation:

To change a polygon from convex to concave, we need to change the sum of its interior angles. In a convex polygon, the sum of the interior angles is always less than 180 degrees. To make it concave, we can change one of the interior angles to a reflex angle, which is greater than 180 degrees. This would change the shape of the polygon, making it concave.