Answer :

Final answer:

To find the volume of the drum, calculate the volume of a cylinder using the formula V = πr^2h. The drum contains 26.18π gallons of penetrant.


Explanation:

To find the volume of the drum, you need to calculate the volume of a cylinder using the formula V = πr^2h, where V is the volume, r is the radius, and h is the height.

Given that the drum has a diameter of 2 feet, the radius is 1 foot. Converting the height from inches to feet, we have a height of 42/12 = 3.5 feet.

So, the volume of the drum is V = π(1)^2(3.5) = 3.5π cubic feet.

To convert cubic feet to gallons, we need to know the conversion factor. Since 1 cubic foot is approximately equal to 7.48 gallons, the drum contains 3.5π x 7.48 = 26.18π gallons of penetrant.


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