The circumference of the base of a cylindrical oil drum is 204cm. Calculate the diameter of the drum.
To find the diameter of the drum, we need to use the formula for the circumference of a circle. The formula is:
Circumference = π * diameter
Given that the circumference of the base of the cylindrical oil drum is 204 cm, we can substitute this value into the formula:
204 = π * diameter
To solve for the diameter, we will isolate the variable:
diameter = 204 / π
Using a calculator, we can approximate the value of π to be approximately 3.14:
diameter ≈ 204 / 3.14
diameter ≈ 65.04 cm
Therefore, the diameter of the drum is approximately 65.04 cm.
To calculate the diameter of the drum, we need to use the formula for the circumference of a circle:
C = 2πr
Where C is the circumference and r is the radius of the circle. However, in this case, the circumference is given, not the radius. We can start by rearranging the formula to solve for the radius:
r = C / (2π)
Now, we can substitute the given circumference to find the radius:
r = 204 cm / (2π)
r ≈ 32.47 cm
Finally, to find the diameter, we can use the formula:
d = 2r
d = 2 * 32.47 cm
d ≈ 64.94 cm
Therefore, the diameter of the oil drum is approximately 64.94 cm.
circumference = diameter * pi
thus 204 cm = diameter (x) * 3.14159265358... or about 3.14.
use division: 204/ 3.14 = ?