This requires you to find the volume of the cone. The volume of a cone is 1/3 the area of the base (a circle) times the height of the cone, or 1/3(3.14)r^2 * h.
6 should be the answer. Because 34 has no meaning because it's behind the dot. 67 has no meaning because the are after the middle. Which means it is the middle to be precision.
The problem ask on which if the following is the value of M5 and M7 if transversal EF cuts parallel lines AB and CD as show in your diagram and the best answer would be letter D. m5 = 55.1 adn m7 =124.9. I hope you are satisfied with my answer and feel free to ask for more