GK Tamil
Home TNPSC Thirukkural Quiz History Geography Science Indian Polity Sports Contact
TNPSC Group 1 · 2017 Preliminary Examination

169.  A boy cut a sector containing an angle of 140° from a circle of radius 15 cm and he folded the sector into a cone. What is the curved surface area of the cone \((\pi=\dfrac{22}{7})\).

Answer: C.   275 sq. cm
;