1 billion around earth
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1 billion around earth

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1 billion around earth 1 billion around earth Presentation Transcript

  • Did you know……..
    If you took 1 billion people standing side by side- shoulder to shoulder, they would be able to go around the earth’s circumference 12 ½ times!
  • We measured 3 people and found that the distance end to end was about 59 inches.
    Using proportions 3 𝑝𝑒𝑜𝑝𝑙𝑒59 𝑖𝑛𝑐h𝑒𝑠=1,000,000,000 𝑝𝑒𝑜𝑝𝑙𝑒𝑥 𝑖𝑛𝑐h𝑒𝑠
    Solving by using cross-multiplication 1 billion people would be 19,666,666,666 inches
    Since 1 ft is 12 inches then 19,666,666,666 𝑖𝑛𝑐h𝑒𝑠12 𝑖𝑛𝑐h𝑒𝑠 = 1,638,888,888 ft.
    The internet said the circumference of the earth is about 131,479,713.54 ft.
    This means that 1,638,888,888 𝑓𝑡131,479,713 𝑓𝑡 = 12.5 times around the earth for 1 billion people