A button has a diameter of 0.80 πππβππ .
What is the exact area of the button in terms of pi (π)?
Β
A=Οr2
(3 points)
Responses
A.Β 0.16ΟΒ in2
A.Β 0.16ΟΒ in2
B.Β 0.40ΟΒ in2
B.Β 0.40ΟΒ in2
C.Β 0.64ΟΒ in2
C.Β 0.64ΟΒ in2
D.Β 0.80ΟΒ in2
C. 0.64Ο in2
The radius of the button is half of its diameter, so the radius is 0.80/2 = 0.40 inches.
Plugging this into the formula for the area of a circle, A = Ο(0.40)2 = 0.64Ο in2.