A. the center of heavy portion
B. the bottom surface
C. the mid point of its axis
D. all of the above
E. none of the above
Correct Answer: the mid point of its axis ✔
Last Updated: January 15, 2019
A. the center of heavy portion
B. the bottom surface
C. the mid point of its axis
D. all of the above
E. none of the above
Correct Answer: the mid point of its axis ✔
Last Updated: January 15, 2019