#import <Cocoa/Cocoa.h>
@interface PolygonShape : NSObject
{
int numberOfSides, maximumNumberOfSides, minimumNumberOfSides;
}
@property (readwrite) int numberOfSides, maximumNumberOfSides, minimumNumberOfSides;
@property (readonly) float angleInDegrees, angleInRadians;
@property (readonly) NSString * name;
@property (readonly)
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