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ce of a circle whose area is 144Ď cm2rzx eren5 A sheet is 11 cm long and 2cm wide. Circular pieces 0-5cm in diameter are cut fromit to prepare discs. Calculate the number of discs that can be prepared.Hint.First we have to cut squares of side 0-5cm |
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Answer» Total number of discs can be prepared = Area of the sheet/Area of one circular discArea of the sheet = L*BArea of one circular disc = πr²Area of the sheet = 11*2 = 22 sq cmArea of one circular disc = 22/7*0.25*0.25⇒ (22)/(22/7*0.0625)⇒ 112 discsSo, total 112 discs can be prepared.Answer. |
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