Question

If ‘r’ ,is the radius and ‘h is height of the cylinder, then volume will be

Answer 1

Answer:

Hey mate here is your answer

Step-by-step explanation:

1) Dimensions of the cylinder

radius = r

Height = h

i ) curved surface area

(CSA) = 2πrh----( 1 )

ii ) volume (v) = πr² h ---( 2 )

2 ) if radius doubled and radius

halved then new cylinder

dimensions are

Radius ( R ) = 2r

Height ( H ) = h /2

New CSA = 2 × π × ( 2r ) × h / 2

= 2πrh

Therefore ,

There is no change in csa .

Zero percent change in csa.

New volume ( V ) = π× (2r)² × ( h / 2 )

= 2πr²h

= 2 × v

Therefore ,change in volume is

100%

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Answer 2

Answer:

100%

Step-by-step explanation: