A paper is in the form of a rectangle ABCD in which AB = 18 cm and BC = 14 cm. A semi-circular portion with BC as diameter is cut off. Find the area of a remaining part.

Length of rect. ABCD, AB =18 cm, breadth of rect ABCD , BC = 14 cm

Area of rect ABCD= 18*14=252cm^2

diameter of semicircular portion = 14cm

radius = 7cm

Area of semi circle =(1/2) * (area of circle) 

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