Answer:
36 π and 12 π respectively.
Explanation:
To find the area of a circle, we do πr^2. For circumference, we do 2πr, where r is the radius. Since we know the diameter of this circle is 12, and we know the radius is half the diameter, then:
12/2 = 6 = r
knowing r, we can find out the area and the circumference. The area is:
πr^2 = π 6^2, so it is 36π for the area. The circumference is:
2πr = 2 π 6 = 12π.