Question

the diameter of a cylindrical bassel without cover is 3.5cm and height is 10cm.what is the cost to paint it from inside and outside if cost is one rupee.and its thickness is none

Answer 1

if the diameter is 3,5 cm so than the radius is 1,75 cm

Answer 2

one cylindrical if this covered planed will get one rectang with lateral sides equales with diameter and with longher sides equales with height of cylinder

Answer 3

- so the area of one rectangle is width multiply lenght side so than will be diameter multiply height

Answer 4

- than 3,5*10=35 cm squared but for you can calcule the cost of this area - inside and outside - so than firstly you need to know what is the cost of paint for one cm squared area

Answer 5

- do you know this ?

Answer 6

this cost ?

Answer 7

- so and you need to know again the area of base what will be r squared *pi
- and if this cylinder is covered so than you need multiply by 2 this area of base
- but considered that is painted inside and outside too so than you need multiply this by 4

Answer 8

i did bt its ans is517rs i didnt get it