Use this information to solve: Water weighs about 63 pounds...

Use this information to solve: Water weighs about 63 pounds per cubic foot, and a cubic foot of water is about 7.5 gallons.
A child's wading pool has a diameter of 7 feet and is 8 inches deep. How many gallons of water can the pool hold? Round your answer to the nearest 0.1 gallon.

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Key Concepts

Volume of a Cylinder

This concept involves computing the volume of a three-dimensional shape that has circular bases and a constant height, using the formula V = ?r²h. It is foundational in geometry when determining how much space is contained within cylindrical objects, and is applicable in numerous real-world problems involving fluid capacity or storage space.

Unit Conversion

Unit conversion is the process of converting a measurement from one unit to another, such as turning inches to feet or cubic feet to gallons. Mastery of this concept is critical in ensuring that calculations remain consistent and accurate when dealing with measurements expressed in different units.

Area of a Circle

The area of a circle is calculated using the formula A = ?r², where r is the radius. This concept is an essential part of understanding circular geometry and is often used as a step in calculating more complex properties, such as the volume of circular-based shapes.

Rounding

Rounding is a mathematical process used to reduce the number of digits in a number while still keeping its value close to what it was originally. It is important for presenting answers in a specified format or level of precision, and is commonly used in practical applications where exact values are unnecessary or impractical.

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