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4 July, 11:10

A pole that is 3.5m tall casts a shadow that is 1.76m long. At the same time, a nearby building casts a shadow that is 46.75m long. How tall is the building? Round your answer to the nearest meter.

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  1. 4 July, 11:28
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    So assuming that the ratios are the same

    height to shadow=h:s=3.5:1.75

    also

    h:46.75

    these mus be equal

    3.5:1.75=h:46.75

    fractionify

    3.5/1.75=h/46.75

    multiply both sides by 46.75

    163.625/1.75=h

    divide

    93.5=h

    rounded to 94

    the actual height=94m high
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