a) Two semicircular parts are removed from a semicircular disc, as shown in Fig 7
() Find area of the shaded region,
(ii) If a thread is to be placed around the boundary of the shaded region, find the
length of the thread required.
40 m
Fig. 7
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semicircular disc, as shown in Fig 7
() Find area of the shaded region,
(ii) If a thread is to be placed around the boundary of the shaded region, find the
length of the thread required.
40 m
Fig. 7
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