A paper is in the form of a rectangle A ...

A paper is in the form of a rectangle `A B C D` in which `A B=20\ c m` and `B C=14\ c mdot` A semicircular portion with `B C` as diameter is cut off. Find the area of the remaining part.

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A paper is in the form of a rectangle A B C D in which A B=20 c m and B C=14 c mdot A semi-circular portion with BC as diameter is cut off. Find the area of a remaining part.

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