A rectangular plank sqrt(2) metre wid...

A rectangular plank `sqrt(2)` metre wide is placed symmetrically on the diagonal of a square of side 8 metres as shown in the figure. The area of the plank is `7sqrt(2)\ s qdotm` (b) `14\ s qdotm` (c) 98 sq. m (d) `(16sqrt(2)-3)s qdotm`

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