Question

find the earth taken out by digging a well of diameter 2m and depth 350 cm​

Answer 1

Step-by-step explanation:

Well is a cylinder of Depth,L

′

=14m and radius R=1m

Embankment is a hollow cyllinder with inner and outer radii :R

i

=1m R

e

=? Height,L=0.4m

Width of embankment =R

e

−R

i

π(R

e

2

−R

i

2

)L=πR

2

L

′

R

e

2

=

L

R

2

L

′

+R

i

2

=35+1=36

⇒R

e

=6m

Hence width of embankment =5m

Answer 2

here is your answer in full process