What is the area of a circle with a radius of 2.1 miles? Estimate the area to the hundredths place using 3.14 for π
.(1 point)
a
square miles
The formula for the area of a circle is A = πr^2, where A is the area and r is the radius.
Using the given radius of 2.1 miles and π ≈ 3.14, we can substitute these values into the formula:
A = 3.14 * (2.1)^2
A ≈ 3.14 * 4.41
A ≈ 13.8314
Rounding to the hundredths place, the estimated area of the circle is 13.83 square miles.
To find the area of a circle, you can use the formula:
Area = π * r^2
where π is a mathematical constant approximately equal to 3.14, and r is the radius of the circle.
Given that the radius is 2.1 miles, we can substitute this value into the formula:
Area = 3.14 * (2.1)^2
Simplifying the equation:
Area = 3.14 * 4.41
Calculating the product:
Area ≈ 13.8334
Rounding to the hundredths place:
Area ≈ 13.83 square miles
Therefore, the estimated area of the circle with a radius of 2.1 miles is approximately 13.83 square miles.
To find the area of a circle, you can use the formula: A = π * r^2, where A represents the area and r represents the radius of the circle.
In this case, the radius of the circle is given as 2.1 miles.
To estimate the area to the hundredths place using 3.14 for π, you can substitute the values into the formula:
A = 3.14 * (2.1)^2
First, square the radius:
(2.1)^2 = 4.41
Next, multiply the squared radius by π:
A = 3.14 * 4.41
Calculating the product, the estimated area is:
A ≈ 13.8314 square miles
Rounding to the hundredths place, this becomes approximately:
A ≈ 13.83 square miles