The diameter of a circle is 38 feet. What is the circle's area?
d=38 ft
Use 3.14 for 𝜋.
The radius is half of the diameter, so r = d/2 = 38/2 = 19 feet.
The area of a circle is given by A = 𝜋r².
Plugging in the values:
A = 3.14(19)²
A = 3.14(361)
A = 1132.54
Therefore, the circle's area is approximately 1132.54 square feet.
To find the area of a circle, you can use the formula:
A = πr^2
Given that the diameter of the circle is 38 feet, we need to find the radius (r) first. The radius is half the diameter, so we can divide the diameter by 2:
r = d/2
r = 38 ft / 2
r = 19 ft
Now we can substitute the value of the radius into the formula and calculate the area:
A = 3.14 * (19 ft)^2
A = 3.14 * 361 ft^2
A ≈ 1134.34 ft^2
Therefore, the area of the circle is approximately 1134.34 square feet.