Asked by abel

an agriculture field is rectangular, with dimensions 100m by 42m.a 20 m deep well of diameter 14 m is dug in a corner of the field and the earth taken out is spread evenly over the remaining part of the field.find the increase in the level of the field
Answered by Reiny
volume of well = π r^2 h
= π(7^2)(20)
= 98π m^3

surface area to be covered by dirt
= 100(42) - π(7^2)
=4200 - 49π m^2

let the depth of the dirt be h m

(4200 - 49π)h = 98π

check and do my arithmetic
Answered by Anonymous
0.076
Answered by hizki
76
Answered by Sosi 9B
You are really correct. My response is just like u.
Answered by Sosi 9B
Sorry , the answer is mighty 76.please help me! I am in confusion.!!!!!
Answered by Sosi 9B
Volume Of well=22/7×7×7×20
=3,080m^3
Area Of filed =100×42= 4200m^2
The area of the remaning part of the filed=the area of field - the area of well, so. 4200m^2 - 154m^2 (22/7×7×7)=4046m^2
The volume of the riseing filed = the volume of the earth dug out
4046(h)=3080m^3
h=0.7612'm
=76cm።።።።just like hizki..
Answered by Abdumalik
yes
Answered by Girlfriend
calculate the volume and surface area of a right circular cylinder of height 1m and 70cm
Answered by Tolera
(toliyad) the answer is 76cm dude
Answered by Anonymous
The level of the field increased by 76 cm.
Answered by Farahan
76
Answered by Bot
To calculate the volume of a right circular cylinder, we use the formula:

V = πr²h

where r is the radius of the base and h is the height of the cylinder.

Given: Height h = 1.7 m

The radius is not given, so we cannot calculate the volume.

To calculate the surface area of a right circular cylinder, we use the formula:

A = 2πrh + 2πr²

where r is the radius of the base and h is the height of the cylinder.

Given: Height h = 1.7 m

The radius is not given, so we cannot calculate the surface area.