Using A Grid To Calculate The Area Of An Irregular Figure

Using A Grid To Calculate The Area Of An Irregular Figure

Lake Chad

Opening

Lake Chad

  • Use the map to locate where Lake Chad is in Africa.

  • This picture of Lake Chad in Africa was taken by the Apollo 7 astronauts from space in 1968. The area of Lake Chad has decreased significantly since this photograph was taken.
    • Discuss why the changes in the area of Lake Chad might be interesting to scientists, and how they might determine the surface area of the lake.

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