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soldier1979 [14.2K]
2 years ago
9

A person who is 6ft tall walks away from a streetlight. When the person is 15 feet away from the light, the tip of his shadow is

5 feet in front of him. Find the height of the streetlight
Mathematics
1 answer:
Citrus2011 [14]2 years ago
5 0
We essentially have a ratio here:
\frac{shadow}{actual}

Since we know the ratio is going to stay constant at \frac{5}{6}, we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
\frac{5}{6}=\frac{20}{h}
5h=120
h=24
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