Final answer:
The area of the circle is 16π square inches and the circumference is 8π inches.
Step-by-step explanation:
To find the area of a circle, we use the formula A = πr², where A represents the area and r represents the radius of the circle. In this case, the radius is 4 inches, so we substitute 4 into the formula: A = π(4)² = π(16) = 16π. Since the question asks for the answer in square inches, we can leave it as 16π square inches.
To find the circumference of the circle, we use the formula C = 2πr, where C represents the circumference. Substituting 4 inches for the radius, we have C = 2π(4) = 8π inches for the circumference.