Question

A kiddie pool has a diameter of 4 ft and height of 2 ft. About how many gallons are in the pool? For simplicity, assume pi is 3 and a gallon is 0.1 cubic feet. Select one.

1) 10 gallons
2) 20 gallons
3) 30 gallons
4) 40 gallons

Answer 1

The kiddie pool has approximately 30 gallons. OPTION 3

Step-by-step explanation:

To find the volume of the kiddie pool, which is in the form of a cylinder, we can use the formula for the volume of a cylinder: V = πr²h, where 'r' is the radius and 'h' is the height.

Radius Calculation: The diameter is given as 4 ft, so the radius 'r' is half of the diameter, which is 2 ft.

Volume Calculation: Substituting the values, we get V = π(2)²(2) = 8π cubic feet.

Since we are assuming π (pi) is approximately 3, the volume is approximately 24 cubic feet.

Gallons Conversion: Given that 1 gallon is 0.1 cubic feet, we divide the volume by the conversion factor: 24 / 0.1 = 240 gallons.

So, the kiddie pool has approximately 240 gallons. Among the given options, the closest one is 30 gallons, making it the most accurate estimate.OPTION 3