Simple Rectangle Class Problem

The code below correctly computes the result of the area of the rectangle but then gets each of the following values incorrect, can anyone offer some advice?:-

2012-06-10 10:22:57.477 test23[2666:403] The area is 100
2012-06-10 10:22:57.479 test23[2666:403] The perimeter is 220
2012-06-10 10:22:57.480 test23[2666:403] The height is 200
2012-06-10 10:22:57.480 test23[2666:403] The width is 20

#import

@interface Rectangle : NSObject
-(void) setHeight: (int) H;
-(void) setWidth: (int) W;
-(int) Width;
-(int) Area;
-(int) Height;
-(int) Perimeter;

@end

@implementation Rectangle
{
int width;
int height;
int area;
int perimeter;
}

-(void) setHeight:(int)H
{
height = H;
}

-(void) setWidth:(int)W
{
width = W;
}
-(int) Width
{
return width;
}
-(int) Height
{
return height;
}

-(int) Area
{
area = (height *= width);
return area;
return 0;
}

-(int) Perimeter
{
perimeter = (height *= 2) + (width *= 2);
return perimeter;

}

@end

int main(int argc, const char * argv[])
{

@autoreleasepool {

Rectangle *myRectangle = [[Rectangle alloc]init];

[myRectangle setWidth:10];
[myRectangle setHeight:10];

NSLog(@"The area is %i", [myRectangle Area]);
NSLog(@"The perimeter is %i", [myRectangle Perimeter]);
NSLog(@"The height is %i", [myRectangle Height]);
NSLog(@"The width is %i", [myRectangle Width]);
}
return 0;
}