Final answer:
To find the volume of a cylinder, use the formula V = πr²h. In this case, the volume is approximately 1781.8 cm³.
Step-by-step explanation:
To calculate the volume of a cylinder, you can use the formula V = πr²h, where V is the volume, r is the radius of the base, and h is the height. Given that the base diameter is 18 centimeters, we can find the radius by dividing the diameter by 2, giving us a radius of 9 centimeters. Plugging in the values, we get V = 3.142 x (9 cm)² x 7 cm = 1781.826 cm³. Rounding to the nearest tenth place, the volume of the cylinder is approximately 1781.8 cm³.