If the base radius of a cylinder is doubled, then how many times will its volume become with respect to its original volume?
Answer & explanation
Correct answer: option 2
Base radius of cylinder is doubled and height remains same.
Volume of cylinder = π × r² × h
Original New
Radius 1 : 2
Radius 1 : 2
Height 1 : 1
------------------------------------------------
Volume 1 : 4
So, Volume becomes 4 times of its original.