Study the graph carefully. Which of the following statements is true? The graph is drawn correctly. The titles are misleading. T
he intervals are not the same width. The graph does not start at 0. 
2 answers:
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For this case we have by definition, that the volume of a cone is given by:
Where:
A: It is the cone radius
h: It's the height
They tell us that the diameter is 21 m, then the radius is half the diameter, that is: 10.5m. The height is 4m. Substituting the data:
.
Finally, the volume of the cube is
ANswer:
Option B