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Ne4ueva [31]
3 years ago
5

A spray irrigation system waters a section of a farmer's field. If the water shoots a distance of 85 feet, what is the area that

is watered as the sprinkler rotates through an angle of 60 degrees? Use 3.14 for pi . Round your answer to the nearest square foot, and enter the number only.
Mathematics
1 answer:
laila [671]3 years ago
8 0

Answer:

The watered area is approximately 3783 square feet.

Step-by-step explanation:

The area that is watered due to the rotation of the spankler is a circular section area (A), whose formula is:

A = \frac{\theta }{2}\times \frac{1}{360^{\circ}}\times 2\pi \times d^{2}

Where:

d - Water distance, measured in feet.

\theta - Rotation angle, measured in sexagesimal degrees.

Given that d = 85\,ft and \theta = 60^{\circ}, the watered area is:

A = \frac{60^{\circ}}{2} \times \frac{1}{360^{\circ}}\times 2\pi \times (85\,ft)^{2}

A \approx 3783\,ft^{2}

The watered area is approximately 3783 square feet.

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