If a circle has a diameter of 7inches, what is the circumference rounded to the nearest whole number?
Use pi=3.14
C = pi * d
C = 3.14 * 7
C = 21.98 = 22
To find the circumference of a circle, you can use the formula: circumference = π * diameter.
Given that the diameter of the circle is 7 inches and π is approximately 3.14, you can substitute these values into the formula:
circumference = 3.14 * 7
circumference = 21.98
The circumference is approximately 21.98 inches. However, we need to round it to the nearest whole number. When rounding, if the decimal is 0.5 or above, we round up. Otherwise, if the decimal is less than 0.5, we round down.
In this case, the decimal is 0.98, which is greater than 0.5. Therefore, rounding up, the circumference rounded to the nearest whole number is 22 inches.
To find the circumference of a circle, you can use the formula:
Circumference = π × Diameter
Given that the diameter of the circle is 7 inches and π is approximately equal to 3.14, we can substitute these values into the formula:
Circumference = 3.14 × 7
Calculating this:
Circumference ≈ 21.98
Rounded to the nearest whole number, the circumference is approximately 22 inches.