Danman325

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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JamesJ

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still here?

JamesJ

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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?

Danman325

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yes

Danman325

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6 feet

JamesJ

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Right. Hence a 20 foot shadow comes from an object how tall? ____ feet

Danman325

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40

JamesJ

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No.

JamesJ

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5 foot person -> 10 foot shadow
3 foot person -> 6 foot shadow
___ foot object -> 20 foot shadow

Danman325

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ohh
10

JamesJ

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Right. Hence for the Sears Tower
___ foot building -> 2908 foot shadow

Danman325

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i misunderstood

Danman325

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ok, 1454

JamesJ

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Yes

Danman325

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so its 1454 ft

JamesJ

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Yes

Danman325

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thx