Question
The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 3 feet. Approximately, how many square feet of the turf need to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth. (1 point)
7.1 square feet
9.4 square feet
18.8 square feet
28.3 square feet
7.1 square feet
9.4 square feet
18.8 square feet
28.3 square feet
Answers
GPT 3.5
The formula to find the area of a circle is A = πr^2, where r is the radius of the circle.
The diameter of each circle is 3 feet, so the radius is half of that, which is 3/2 = 1.5 feet.
Now plug the radius into the formula:
A = 3.14 * (1.5)^2
A = 3.14 * 2.25
A ≈ 7.065
Rounding to the nearest tenth, the approximate area is 7.1 square feet.
Therefore, the answer is 7.1 square feet.
The diameter of each circle is 3 feet, so the radius is half of that, which is 3/2 = 1.5 feet.
Now plug the radius into the formula:
A = 3.14 * (1.5)^2
A = 3.14 * 2.25
A ≈ 7.065
Rounding to the nearest tenth, the approximate area is 7.1 square feet.
Therefore, the answer is 7.1 square feet.