Question

# In a cylinder, radius is doubled and height is halved, curved surface area will

A
halved
B
doubled
C
same
D
four times

Solution

## The correct option is C sameCurved surface area of cylinder is $$2 \pi r h$$.Given, $$R=2r,H=\dfrac{h}{2}$$Therefore, curved surface area of the cylinder$$=2\pi RH$$$$=2\pi(2r)\left (\dfrac{h}{2}\right)$$$$=2\pi rh$$Mathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More