Trench

The trench is a four-sided prism. The cross-section has a trapezoidal shape with basements of 4m and 6m, and the length of the trench is 30m. What is the depth of the trench if we dig 60,000 l of soil?

Correct answer:

h =  0.4 m

Step-by-step explanation:

a=4 m c=6 m s=(a+c)/2=(4+6)/2=5 m l=30 m V=60000/1000=60 m3 S=V/l=60/30=2 m2 S = s h h=S/s=2/5=0.4 m



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you want to convert length units?
Do you know the volume and unit volume, and want to convert volume units?

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1   video2   video3

Related math problems and questions: