if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and ∠AOC=40 degree.

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Find the area of the shaded region in fig.12.20, if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and ∠AOC=40 degree.
06
Oct
Find the area of the shaded region in fig.12.20, if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and ∠AOC=40 degree. Find the area of the shaded region in fig.12.20 if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively [...]
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