Question

Find the ratio of surface areas of cubes whose volumes are 216 cm' and 512 cm respectively.
6 Ir both the height and diameter of a cylinder are r сm, then find the curved surface area and total
surface area of the cylinder
. ​

Answer 1

Answer:SA of cube 1 216

---------------------- = --------

SA of cube 2 512

6a² 216

--------- = ---------

6A² 512

a² 54

---- = -------

A² 128

a² 27

---- = ---------

A² 64

a √27

--- = -----

A 8

⇒The ratio is √27 : 8

here is ur answer