A paper is in the form of rectangular piece PQRS in which PQ = 40 cm and QR = 28 cm. A semi-circular portion with QR as diameter is cut off. Find the area of the remaining part.
35, 36, 40, 49 , 65 , ?
29 46 65 88 ? 148
18, 25, 33, 42, 52, 63, ?
64 96 48 72 36 ?
362 284 393 451 144 221
840 400 180 ? 15 -12.5
4096 2048 514 64 4
1001, 728, 513, 342, 217, ?
8 24 48 144 ? 864
10 14 41 ? 182 218
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