Area, Perimeter and Circumference Review WS

Note: A circle with radius r units has area A = (r2 and circumference C=2πr or C=πd. Find the area and circumference of a circle whose radius is 7. Find the area and circumference of a circle whose diameter is 10. Find the area of the region bounded by two concentric circles with radii 10 inches and 6 inches. ................
................