A two dimensional picture of a circular onion ring is shown at the right. The inner radius of the onion ring is x cm. and the thickness of the ring is 1 cm. Which of the numbered choices represents the area, in square centimeters, of the onion ring (the shaded region)?

Question

1) 2)
3) 4)

Answer 1

1) (2X+1)*pi
2) 2*pi
3) 2x*pi
4) pi

Answer 2

done, see your other post