The diameter of a circle is 38 centimeters. What is the circle's area?
Use 3.14 for 𝜋.
The radius of the circle is half of the diameter, which is 19 centimeters.
The formula for the area of a circle is:
𝐴 = 𝜋𝑟²
Plugging in the value for 𝜋 and the radius:
𝐴 = 3.14 x 19²
𝐴 = 1,138.22 square centimeters
Therefore, the area of the circle is 1,138.22 square centimeters.
To find the area of a circle, you can use the following formula:
A = 𝜋 * r^2
Where A is the area and r is the radius of the circle.
Given that the diameter of the circle is 38 centimeters, we can find the radius by dividing the diameter by 2:
r = d/2 = 38/2 = 19 centimeters
Now, we can substitute the value of the radius into the formula:
A = 3.14 * 19^2
Calculating the square of 19:
A = 3.14 * 361
Multiplying 3.14 by 361:
A ≈ 1134.94
Therefore, the area of the circle is approximately 1134.94 square centimeters.