area of a sector of a circle with radius Y and angle with degree measures theta is dash
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we find area of sector then we then we use area of sector = ( theta ÷360×πr2).
therefore [radius= y] and theta = 10 degree
then area = 0.1047×y2
therefore [radius= y] and theta = 10 degree
then area = 0.1047×y2
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