Question

plz answer this question....​

Answer 1

Answer:

Answer in explanation. Please mark me as brainliast. Hope it helps.

Step-by-step explanation:

Given, Diameter =4 m

Radius =2 m h=21 m

V=πr

2

h=π(2)(2)(21)=84π

Volume of soil dug from well = volume of earth used to form embankment

⇒84π=π(5

2

−2

2

)h

h=

25−4

84

=

21

84

=4m Please mark me as brainliast. Hope it helps.

Answer 2

Answer:

Given, diameter = 4m

Radius = 2m h= 21m

v = πr²h = π (2)(2)(21) = 82π

volume of soil dug from well = volume of earth used to form embankment

= 84π = π(5² – 2²)h

h = 84 = 84 = 4m

25 – 4 21

= 4m