On a square handkerchief,nine circular designs each of radius 9cm are made. Find the area of the remaining portion of the handkercheif.

3 answers

Assuming that the circles are arranged in a 3 by 3 pattern, and their continuous diameters are parallel to the sides of the square ....
the square would 54 cm by 54 cm, with an area of 2916 cm^2
the area of the circles is 9(π(81)) cm^2 = ...
take the difference between the two areas.
give clear answer
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