Definition:Total area which includes Boundary as well Interior of Curve, is referred to as “Region of Closed Curve”
In the following Close Curve:
Red denotes Boundary of Closed Curve and Green denoted Interior of Closed Curve.
And total of red + green area is referred to “Region of given Closed Curve”
Points A, B, C, D, E, F, G, H, I & J all fall within the Region of given Closed Curve.

