Aerospace Engineering > GATE 2022 > Geometry
Equal sized circular regions are shaded in a square sheet of paper of 1 cm side length. Two cases, case M and case N, are considered as shown in the figures below. In the case M, four circles are shaded in the square sheet and in the case N, nine circles are shaded in the square sheet as shown.
What is the ratio of the areas of unshaded regions of case M to that of case N?
What is the ratio of the areas of unshaded regions of case M to that of case N?
Correct : b
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