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Question
Find the volume of the right circular cone with radius 3.5 cm and height 12 cm.
`["Assume "pi=22/7]`
Solution
Radius (r) of cone = 3.5 cm
Height (h) of cone = 12 cm
Volume of cone = `1/3pir^2h`
= `[1/3xx22/7xx(3.5)^2xx12]cm^3`
= `(1/3xx22xx1/2xx3.5xx12)cm^3`
= 154 cm3
Therefore, the volume of the cone is 154 cm3.
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