Find the area of the shaded region between the two concentric circles in the given figure here, where the circumference of the outer circle is 176 cm and the circumference of the inner circle is 132cm. (use ∏ = 22/
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Answer:
If R and R' be the radii of two circles
∴2πR−2R
′
=176−132
2π(R−R
′
)=44
∴R−R
′
=
2×22
44×7
=7m
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