Question

12 which of the following statement is incorrect ( )
A the ratio of Surface areas of cylinder and
Cone is 1:1
The ratio Surface Areas of sphere and hemisphere is 2:1
c) The ratio Total surface area of sphere and
hemisphere is 2.1.
The ratio of volumes of Cylinder and cone is 3:1​

Answer 1

Step-by-step explanation:

statement (A) is incorrect

because ,

Surface areas of cylinder:Surface areas of cone

2πrh : πrl

2h : l

2h : root(r^2+h^2).which is incorrect

Answer 2

Answer:

option A&C are incorrect

Step-by-step explanation:

option a=2h:L

option c=4:3