KduhhLeplood6s KduhhLeplood6s
  • 01-06-2017
  • Mathematics
contestada

What is the diameter of a cone with height 8 m and volume 150 m3 ? (1 point 7.5 m 15 m?

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CastleRook
CastleRook CastleRook
  • 09-06-2017
This is the concept of volume of solid materials, we are required to find the diameter of cone with height 8 and volume 150 m^3.
volume of cone is given by;V=1/3 (pi*r^2*h)
making r^2 the subject we get;
V/(pi*h)=r^2
inserting the values in our formula we get:
150/(pi*8)=r^2
r^2=5.97
thus;
r=sqrt(5.97)=2.44
But ;
diameter=2*radius
thus
diameter=2.44*2
=4.88 m
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