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Earlier discussion
3 older comments kept for context.
Joe
The cuboid and cube have the same base area which is 16cm square. Therefore the height of the cuboid is 80/16. since volume = base area * height. That means the height is 5cm
Haleemah
Volume of Cone=X² × X
I.e. Base area × Height
Volume of Cuboid=XY × Z
I.e Base Area × Height
V. Of Cone=x³
64=x³;x=³√64
X=4
====>>Base Area which is X² becomes
4²=16
Since Base Area of Cone is the same as base area of Cuboid
V. Of Cuboid=Base area × Height
80 =16×h
h=5cm
Chimereucheya Victor
The answer is C
This is because the length and breadth of the cube and cubiod are the same . The base area for both the cube and cubiod are the same 16cm^2 . This means that the height of the cubiod is 5cm in order to make the volume 80cm^3