I only agree with the first student strategy of multiplying the area of the base with the height.
A cylinder is made up of two circles at the top and the base.
The volume of the cylinder can be expressed as:
V = Bh
where
B is the base area
h is the height of the cylinder
V = πr²h
HEnce I only agree with the first student strategy of multiplying the area of the base with the height.
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