How many circuler shapes of daimeter 0.7cm can be cut from a rectangular sheet measuring 15.1cm by7. 5cm? What percentage of the sheet is washed?
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circular shapes = area of rectangle / area of each circular shape
for percent of sheet wasted then
required % = (area of rectangle - area of circular shapes ) × 100 / area of rectangular sheet
for percent of sheet wasted then
required % = (area of rectangle - area of circular shapes ) × 100 / area of rectangular sheet
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