Answer:
Explanation:
radius of circle=4
diameter=4×2=8
width=2 half circles means diameter=8
length=2 diameters=2×8=16
area=16×8=128
4 half circles make two circles
area of two circles=2×π r^2=2×π×4²=32 π
reqd . area=128-32 π=32(4-π)
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