A button has a diameter of 0.80 πππβππ . What is the exact area of the button in terms of pi (π)? A=Οr2 (3 points) Responses A. 0.16Ο in2 A. 0.16Ο in2 B. 0.40Ο in2 B. 0.40Ο in2 C. 0.64Ο in2 C. 0.64Ο in2 D. 0.80Ο in2
D. 0.80Ο in2
To find the area of a circle, you use the formula A=Οr^2, where r is the radius of the circle. Since the button has a diameter of 0.80 inches, the radius would be half of that, which is 0.40 inches. Plugging this into the formula, we get A=Ο(0.40)^2 = 0.80Ο in2.