A well with 10m inside diameter is dug 8.4m deep. Earth taken out of it is spread all around it to a width of 7.5m to form an embankment. Find the height of the embankment.

Explanation

To solve the problem, we need to find the height of the embankment formed by the earth dug out from the well. Here’s a step-by-step solution:

### Step 1: Calculate the volume of the well
The volume \( V \) of a cylinder (the well) is given by the formula:
\[ V = \pi r^2 h \]
where \( r \) is the radius and \( h \) is the height (or depth in this case).
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