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24 January, 00:27

The next stop on the road trip is the zoo! jacob goes to find his favorite animal, the giraffe. jacob wonders how tall the tallest giraffe at the zoo is. if jacob is 5 feet 6 inches and his shadow at the time is 3 feet long, find the height of the giraffe whose shadow is 5 feet 9 inches at the same time.

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  1. 24 January, 01:57
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    1 foot = 12 inches

    Height of Jacob = 5 feet 6 inches = 5 * 12 + 6 = 66 inches

    Jacob's shadow = 3 feet = 36 inches

    giraffe's shadow = 5 feet 9 inches = 5 * 12 + 9 = 69 inches

    by the ratio and proportion

    ∴ Height of Jacob/Jacob's shadow = Height of giraffe/giraffe's shadow

    ∴ 66/36 = Height of giraffe/69

    ∴ Height of giraffe = 69 * 66/36 = 126.5 inches = 10 feet 6.5 inches
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