"Published in Newark, California, USA"
The diameter of a well is 6 ft., and the water is 7 ft. deep. How many gallons of water are there in the well, reckoning 7.48 gal. to the cubic foot?
Solution:
To illustrate the problem, it is better to draw the figure as follows
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| Photo by Math Principles in Everyday Life |
Since the diameter of a well as well as the depth of water inside the well are given, then we can calculate the volume of water as follows
Therefore, the amount of water inside the well in gallons is
