Answer: dont worry i got u
Explanation:
To find the mass of the cylindrical portion of the marble pillar, we need to know the volume of the cylinder and multiply it by the density of marble.
First, let's find the volume of the cylinder. The volume of a cylinder can be calculated using the formula V = πr²h, where r is the radius and h is the height.
The problem provides the height of the cylinder as 14 inches, but it does not provide the radius. So we need to determine the radius of the cylinder using the information given.
The information "115 in." seems to be unrelated to the problem and can be ignored.
To find the radius, we need to know the diameter of the cylinder. Since the problem does not provide the diameter directly, we can calculate it by multiplying the radius by 2.
Next, we can convert the height from inches to centimeters because the density of marble is given in grams per cubic centimeter.
Now, let's calculate the volume of the cylinder using the given information.
Since the formula for the volume of a cylinder is V = πr²h, we need to substitute the values for radius (r) and height (h) into the formula.
After finding the volume, we can multiply it by the density of marble (2.56 grams per cubic centimeter) to find the mass.
Finally, we can round the mass to the nearest kilogram to get the answer.
Please provide the radius of the cylinder in inches so that I can continue with the calculations and provide you with the accurate mass of the cylindrical portion of the marble pillar.