A square of side 10 cm has its corners cut off. the corners are square of side 1 cm. what is the perimeter of the remaining figure?
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Total perimeter of big square = 4a= 4×10 = 40 cm
perimeter of 4 small squares = 4×4A = 4×4×1=16cm
Perimeter of remaining figure = perimeter of big square - perimeter of 4 small squares =40-16 = 24cm
perimeter of 4 small squares = 4×4A = 4×4×1=16cm
Perimeter of remaining figure = perimeter of big square - perimeter of 4 small squares =40-16 = 24cm
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