Question 156354
Begin by determining the angle covered in 20 minutes, which we know is 120 degrees or (2/3)*pi in radians.  Since there are 360 degrees in a circle, this is 120/360 or 1/3 of the total circle.

Then, find the area of the circle using the formula pi*r^2.  In this case, r = 6 so the area is 36*pi.

To, find the answer, multiply 1/3 by 36*pi to get <b>12*pi</b>.