Calculate the volume of the right cone. Question 7 in the link...
Calculate the volume of the right cone.
Question 7 in the link below..
To find the volume of the cone , we have to first find the radius and the height.
According to simple trigonometry,
`r/25 = sin(20)`
`r = 25 xx 0.3420`
`r = 8.55`
`h/25 = cos(20)`
`h = 25 xx 0.9397`
`h = 23.4925`
The volume of a cone is given by,
`V = 1/3pir^2h`
`V = 1/3 xx pi xx 8.55^2 xx 23.4925`
`V = 1798.4 cm^3`
Therefore the correct answer is B.