Mensurationhard · Past Paper
Ratio of area of incircle to circumcircle of a square is:
A1 : 2
B1 : sqrt(2)
C1 : 4
D2 : 1
✓ Correct Answer: A — 1 : 2
Inradius = a/2, Circumradius = a/sqrt(2). Ratio of areas = (a/2)^2 / (a/sqrt(2))^2 = 0.25 / 0.5 = 1/2.
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