What is the circumference of a circle with a diameter =4
The circumference of a circle can be found using the formula C = πd, where C is the circumference and d is the diameter.
Given that the diameter is 4, we can plug it into the formula:
C = π * 4
Using an approximation of π as 3.14, we can calculate the circumference:
C = 3.14 * 4
C ≈ 12.56
Therefore, the circumference of a circle with a diameter of 4 is approximately 12.56.
Now same thing but with 3.25
Using the same formula C = πd, where C is the circumference and d is the diameter, we can find the circumference of a circle with a diameter of 3.25.
C = π * 3.25
Using an approximation of π as 3.14, we can calculate the circumference:
C = 3.14 * 3.25
C ≈ 10.21
Therefore, the circumference of a circle with a diameter of 3.25 is approximately 10.21.
Now w8th a radius of 2.5
To find the circumference of a circle with a radius of 2.5, we can use the formula C = 2πr, where C is the circumference and r is the radius.
C = 2π * 2.5
Using an approximation of π as 3.14, we can calculate the circumference:
C = 2 * 3.14 * 2.5
C ≈ 15.7
Therefore, the circumference of a circle with a radius of 2.5 is approximately 15.7.
Now with 12 feet
To find the circumference of a circle with a radius of 12 feet, we can use the formula C = 2πr, where C is the circumference and r is the radius.
C = 2π * 12
Using an approximation of π as 3.14, we can calculate the circumference:
C = 2 * 3.14 * 12
C ≈ 75.36
Therefore, the circumference of a circle with a radius of 12 feet is approximately 75.36 feet.
Now 10 millimeters
To find the circumference of a circle with a radius of 10 millimeters, we can use the formula C = 2πr, where C is the circumference and r is the radius.
C = 2π * 10
Using an approximation of π as 3.14, we can calculate the circumference:
C = 2 * 3.14 * 10
C ≈ 62.8
Therefore, the circumference of a circle with a radius of 10 millimeters is approximately 62.8 millimeters.