Question

A plot of land in the form of rectangle has a dimension 240 m into 180 m a drainlet 10m wide is dug all around it and the earth dug out is evenly spread over the plot increasing its surface level by 25 cm find the depth of the greenland

Answer 1

dear friends,
since the rectanglular surface level is increased, we can calculate the volume of earth dug and added on the rectanglur plot.
volume of earth dug = 240 m × 180m × 0.25m= 10800m^3

the volume is also the volume of the drainlet.
= 2(240m × 10m × d m ) + 2(180m ×10m × dm )
= 10800 m^3
d = depth = 1.29m

answered by rakhi
hope it will helpful for you
Mark it brainly

Answer 2

Answer:

Step-by-step explanation: