A well of diameter 4m is dug 14m deep. The earth taken out is spread evenly all around the well to form a 40cm high embankment.
Find the width of the embankment
1 answer:
Answer:
82.72m
Step-by-step explanation:
Volume = πr2h
= 3.142*7*7*14
= 2,155.41m³
Now that we hav the volume of earth, we go on to find the raduis of the spread
2155.41m³ = 3.142*r²*0.4
2155.41m³ = 1.26r²
r² = 1,710.64
r = 41.36m
Width = diameter = 2r = 82.72m
You might be interested in
If the parabola looks like a smile then its a smiley face. if the parabola looks like a frown then its a frown face
Answer:
there seems to only be one zero at the end of 20. WAIT IS THIS ABOUT MY GRADES? I PROMISE IT WASN'T ME!
Step-by-step explanation:
Answer:
0.1875, or 3/16
Step-by-step explanation:
The formula for density is mass/volume.
I hope this helps :)
That would be the hundred thosand place
