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)