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A phone company needs to know how tall a cell tower is, so it decides to use a 4 m pole and shadows cast by the sun, as shown in the diagram. Both shadows end at point B.

What is the height of the tower?

A phone company needs to know how tall a cell tower is, so it decides to use a 4 m-example-1

1 Answer

3 votes
The question above is a ratio problem so since both shadows end at point B, then the towers are proportional.
Start with 40:5 and reduce it to 8:1. Now, for every 8 meters of the big tower, the little tower increases one.
Now since the little tower is 4 meters, the big tower will be 36 meters.
I hope my answer helped you.
User Daniel Delgado
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