The curved surface area of a cone is 1980 cm2 and its radius is 21cm, – McqOptions

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1.	The curved surface area of a cone is 1980 cm2 and its radius is 21cm, what is the slanted height of a cone? (Take π = \(\frac{22}{7}\))
A.	25cm
B.	28cm
C.	35cm
D.	30cm
Answer» E.

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