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Math 9

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A 6 m flagpole casts a 5 m shadow at the same
time of the day as a building casts a 28m
shadow. How tall is the building?

I drew out a flag and a building, with a shadow coming from the top to the ground. What do i do next?

  • Math 9 -

    Use proportions.
    The height of the building can be x.
    Cross multiply.
    Divide each side by 5 so you isolate x.
    168/5 = Simplify this to get your answer.

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