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A volcanic plug shaped like a cone has a diameter of 24 km and a height of 3 km.

What is the volume of the plug?
Use 3.14 to approximate pi, and express your final answer in hundredths.

____km^3


Sagot :

correct answer: 918.7 km 
V = ¹/₃πr²h
V = ¹/₃(3.14)(12)²(3)
V = ¹/₃(3.14)(144)(3)
V = ¹/₃(3.14)(432)
V = ¹/₃(1356.48)
V = 452.16km³