Allie used 14.0m3 of cement to make a square patio. if the thickness of the patio is 20 cm, the length of the patio must be?
allie used 14.0m3 of cement to make a square patio. if the thickness of the patio is 20 cm, the length of the patio must be?
allie used 14.0m3 of cement to make a square patio. if the thickness of the patio is 20 cm, the length of the patio must be?
1 Answer
Explanation:
There are different ways of doing this, and this is just one way.
If we consider a piece of concrete that is
Now we find the volume of this:
We then divide
This means we have
We need the patio to be square, so if the sides are x metres:
So each side is
We can check this by finding the volume of the patio.