AB and CD are respectively two arcs of t...

AB and CD are respectively two arcs of two concentric circles of radii 21cm and 7cm with centre O. IF `angle AOB=30^@` Find the area of the shaded region.

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The correct Answer is:

`102.67 cm^2`

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ZEN PUBLICATION-AREA RELATED TO CIRCLES -TEXTUAL EXERCISES (EXERCISE 5.3)

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