Center pivot irrigation
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Center Pivot Irrigation - PowerPoint PPT Presentation

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Center Pivot Irrigation. Aerial Shot. Another View. On the Ground. So, how does it work?. Building a center-pivot irrigation system Center-pivot in action!. Vocabulary. circumference. – the distance around a circle

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So how does it work
So, how does it work?

  • Building a center-pivot irrigation system

  • Center-pivot in action!



  • – the distance around a circle

  • – a line that passes through the center of a circle

  • – the distance from the center of a circle to any point on the edge of that circle (half the diameter)



You re hired
You’re hired…

Mr. Brown owns a section of land that is ½ mi X ½ mi. He uses this section of land to produce cotton to sell. His land is relatively flat, and so he is interested in using center-pivot irrigation. He wants to use as much of his land as possible to grow cotton.

He has hired you to answer the following:

  • What total length of trusses does he need to purchase?

  • What is the circumference of the irrigated area?

  • What is the diameter of the irrigated area?

  • Draw a sketch of the land showing the irrigation circle. Label all known mathematical facts.

In conclusion
In Conclusion

  • Write a three- to five-sentence paragraph providing your answers to Mr. Brown. Include the cost for the trusses. In addition, answer the following questions in your paragraph:

  • —What is the area of irrigation?

  • —How much of Mr. Brown’s land is NOT being irrigated?

  • —What percent of Mr. Brown’s land is being irrigated by center-pivot irrigation?