the diameter of a circle is 22 m. find its area to the nearest whole number.
The diameter of a circle is 22 m. Find its area to the nearest whole number.
Answer:
To calculate the area of a circle, we first need to find the radius since we are given the diameter. The radius of a circle is half of the diameter, so in this case, the radius would be:
Radius (r) = Diameter / 2 = 22 m / 2 = 11 m.
Now that we have the radius, we can use the formula for the area of a circle, which is:
A = \pi \times r^2
Substitute the value of the radius into the formula:
A = \pi \times (11)^2 = \pi \times 121
Approximating the value of π to 3.14, we can calculate the area:
A \approx 3.14 \times 121 \approx 380.14
Therefore, the area of the circle with a diameter of 22 meters is approximately 380 square meters when rounded to the nearest whole number.