A cylindrical drain pipe is 3 inches across the top and about 12 inches high. How many cubic inches of water could it hold (Use 3.14 for * as needed. Round to the
nearest whole number.)?
To find the volume of the cylindrical drain pipe, we can use the formula for the volume of a cylinder: V = πr²h.
Given that the drain pipe is 3 inches across the top, we can determine the radius by dividing the diameter by 2: r = 3 inches / 2 = 1.5 inches.
The height of the drain pipe is given as 12 inches: h = 12 inches.
Now we can substitute these values into the formula to find the volume:
V = π(1.5 inches)²(12 inches)
V = 3.14 * 1.5² * 12
V = 3.14 * 2.25 * 12
V ≈ 84.78 cubic inches
Rounded to the nearest whole number, the cylindrical drain pipe could hold approximately 85 cubic inches of water.