1.

If the base circumference of a right circular cone and its height are 220 cm and 21 cm respectively, then the volume of the cone is : (A) 24, 630 cm3 (B) 21,750 cm3 (C) 26,950 cm3 (D) 25,400 cm3

Answer»

(C) 26,950 cm3 

2r = 220  ∴ r =35

vol = \(\frac{1}{3}r^2h=26950\)



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