A shuttle cock used for playing badminton has the shape of a frustum o – McqOptions

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1.	A shuttle cock used for playing badminton has the shape of a frustum of a cone mounted on a hemisphere. The external diameters of the frustum are 5cm and 2cm, the height of the entire shuttle cock is 7cm. Find the external surface area.
A.	80 sq.cm
B.	73.38 sq.cm
C.	74.29 sq.cm
D.	74.30 sq.cm
Answer» B. 73.38 sq.cm

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