# Traffic laws

Under traffic regulations, car lights can illuminate the road up to a maximum of 30 m. To check the reach of the dipped-beam lights of their car, Peter stopped the car at 1.5 m from the wall. The dipped beam headlights are 60 cm high. At what height on the wall does Peter have to draw a mark to see if his dipped lights are on properly?

## Correct answer:

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### You need to know the following knowledge to solve this word math problem:

**geometry**- similarity of triangles
**planimetrics**- triangle
**basic functions**- direct proportionality
- simple proportion

### Units of physical quantities:

### Grade of the word problem:

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