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Danman325

  • 4 years ago

The Sears Tower in Chicago is the tallest building in the USA. On a sunny day, the Sears Tower casts a shadow that is 2908 feet long. A 5 foot person standing by the building casts a 10-foot-long shadow. How tall is the Sears Tower in feet?

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  1. JamesJ
    • 4 years ago
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    still here?

  2. JamesJ
    • 4 years ago
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    Ok, so if a 5 foot tall person casts at 10 foot shadow, how long a shadow would a 3 foot child cast?

  3. Danman325
    • 4 years ago
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    yes

  4. Danman325
    • 4 years ago
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    6 feet

  5. JamesJ
    • 4 years ago
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    Right. Hence a 20 foot shadow comes from an object how tall? ____ feet

  6. Danman325
    • 4 years ago
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    40

  7. JamesJ
    • 4 years ago
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    No.

  8. JamesJ
    • 4 years ago
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    5 foot person -> 10 foot shadow 3 foot person -> 6 foot shadow ___ foot object -> 20 foot shadow

  9. Danman325
    • 4 years ago
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    ohh 10

  10. JamesJ
    • 4 years ago
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    Right. Hence for the Sears Tower ___ foot building -> 2908 foot shadow

  11. Danman325
    • 4 years ago
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    i misunderstood

  12. Danman325
    • 4 years ago
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    ok, 1454

  13. JamesJ
    • 4 years ago
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    Yes

  14. Danman325
    • 4 years ago
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    so its 1454 ft

  15. JamesJ
    • 4 years ago
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    Yes

  16. Danman325
    • 4 years ago
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    thx

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