Final answer:
To find the square footage of a 4 foot diameter circle, use the area formula A = πr², with r equal to half the diameter. The area is approximately 12.57 square feet.
Step-by-step explanation:
The square footage of a 4 foot diameter circle can be found by using the formula for the area of a circle, which is A = πr², where r is the radius of the circle. Since the diameter is given as 4 feet, the radius would be half of that, which is 2 feet.
To find the square footage of a circle with a 4-foot diameter, we can start by finding the radius of the circle. The radius is half of the diameter, so in this case, the radius would be 2 feet.
The formula to find the area of a circle is A = πr², where A is the area and r is the radius. Plugging in the value of the radius, we get A = π(2)² = 4π square feet.
Using an approximate value of π = 3.14, we can calculate the area to be 12.56 square feet,
Plugging the radius into the formula gives us:
A = π(2²)
A = π(4)
A = 4π square feet
Since π is approximately 3.14159, the area would be roughly 12.57 square feet.