Question

A drop

of
oil volume 10 m
Spreads out on water to make a
Circular fils of diameter 10
What is that thickness?​

Answer 1

`27.5\ m`

Step-by-step explanation:

As we know that volume of cylinder is

`v=\pi r^(2) *h`

Where v=volume , h= height or thickness and r= radius

Here,

`v= 10 m ,\ diameter= 10, \ r=(diameter)/(2) \ r=(10)/(2)\\ r=5`

Putting these values in the previous equation , we get

`10\ = (22)/(7) *5 *5*h\\ 14\ =\ 110*h\\h=(110)/(14) \\h=(55)/(2) \\\\h=27.5\ m`

Therefore thickness is 27.5 m