Answer: 1,384.74 units³
Step-by-step explanation: To find the volume of a cylinder, start with the formula for the volume of a cylinder.
Volume = πr²h
Notice that our cylinder has a radius of 7 units and a height of 9 units so plugging into the formula, we have (π)(7 units)²(9 units).
Start by simplifying the exponent. 7² is equal to 7 units × 7 units or 49 units² so we have (π)(49)(9). Now, 49 × 9 is 441π units³.
So the volume of the cylinder is 441π units³.
Now, remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the volume by plugging in 3.14 for π.
So we have (441)(3.14) which is equal to 1,384.74 units³.
So the value of the volume is approximately 1,384.74 units³.
