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42. The four equal circles of radius 4cm drawn on the four corners ofa square touch each other exter-ually. Then the area of the por-tion between the square and thefour sectors is(1) 9 (π-4) sq. cme-D(1) 16 (π-4) sq. cm(3) 9 (4-1) sq. cm.(4) 16 (4-지 sq.cm |
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