3. A tunnel 5 m long, 4 m broad and 1.8 m deep is dug. Find the volume of the earth dug out. | Snapsolve
How many cubic metres of earth must be dug out to sink a well 22.5 m deep and of diameter, 7m Also find the cost of plastering the inner curved surface at
![how many cubic metres of earth must be dug out to sink a well of 225 m deep and diameter7 also find the cost of plastering the inner curved surface ar - how many cubic metres of earth must be dug out to sink a well of 225 m deep and diameter7 also find the cost of plastering the inner curved surface ar -](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=8256687bb195cac18a4f0fe8f1027989.png)