Question

in a corner of a rectangular field with dimensions 35m* 22m , a well with 14 m inside diameter is dug 8 m deep. the earth dug out is spread evenly over the remaning part of the field. find the rise in the level of the field?

Answer 1

Answer:

2m

Step-by-step explanation:

Find the area of the rectangle:

Area = Length x Breadth

Area = 35 x 22 = 770 m²

Find the area of the well:

Area = πr²

Area = π(14 ÷ 2)² = 154 m²

Find the area of the rectangle without the well:

Area = 770 - 154  = 616 m²

Find the amount of earth dug:

Volume = πr²h

Volume = π(14 ÷ 2)²(8) = 1232 m³

Find the raise in height:

Raise = Volume ÷ area

Raise = 1232 ÷ 616 = 2 m

Answer: There is a rise of 2m.

Answer 2

Hi!

here's your answer :)

Step-by-step explanation:

Area of rectangular field = 35×22

=616m^2

Volume of the well=22/7×7×7×8

=1232m^3

Volume of the well= Volume of rectangular field=1232m^3

Volume = Area×Rise in the level

1232=616×Rise in the level

1232/616=2m

Rise in the level of the field=2m.