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21 votes
21 votes
A pole that is 3.1 m tall casts a shadow that is 1.16 m long. At the same time, a nearby building casts a shadow that is 46.25 m long. How tall is the building? Round your answer to the nearest meter.

User Ctietze
by
2.6k points

1 Answer

11 votes
11 votes

Answer:


124\text{ m}

Step-by-step explanation:

Here, we want to get the height of the building

Firstly, we need a diagrammatic representation of the presented information

We have that as follows:

The structures and their shadows form right triangles

Right triangles are similar

When two shapes are similar, the ratio of their corresponding sides is equal

Thus, we have it that:


\begin{gathered} (1.16)/(3.1)\text{ = }(46.25)/(h) \\ \\ h\text{ = }(46.25*3.1)/(1.16) \\ \\ h\text{ = 123.599 m} \end{gathered}

To the nearest m, this is 124 m

A pole that is 3.1 m tall casts a shadow that is 1.16 m long. At the same time, a-example-1
User Willlma
by
3.1k points
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