What is the maximum area that can be irrigated by a sprinkler system that sprays water over a distance of 40 meters and rotates through an angle of 120 degrees?

To find the maximum area that can be irrigated by the sprinkler, we can first visualize the area it covers as a sector of a circle.

The formula for the area of a sector is:

A = (θ / 360) * π * r²

Where:

  • A = area of the sector
  • θ = angle in degrees
  • r = radius (distance the sprinkler can spray)

In this case, the radius (r) is 40 meters, and the angle (θ) is 120 degrees. Plugging the numbers into the formula gives:

A = (120 / 360) * π * (40)²

A = (1/3) * π * 1600

A = (1600π) / 3

Calculating that, we have:

A ≈ 1675.52 square meters (using π ≈ 3.14)

Thus, the maximum area that can be irrigated by the sprinkler system is approximately 1675.52 square meters.

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