A central pivot irrigation system is watering a circular field with a radius of 120 feet. The system rotates pi/6 radians in one hour. What area ( to the nearest square foot) is watered in one hour?

Question

rhystic · Answer

area of a semi -circle is pi*r^2 / 2. so first the total area is  .5* pi*120^2 take this value and divide by a 6th to get the area covered by the system.

rhystic · Answer

so your final equation is:    120^2*pi / 12 .

anonymous · Answer

ok thanks

anonymous · Answer

wait so thats my answer?