# Lighthouse

Marcel (point J) lies in the grass and sees the top of the tent (point T) and, behind it, the top of the lighthouse (P). | TT '| = 1.2m, | PP '| = 36m, | JT '| = 5m. Marcel lies 15 meters away from the sea (M). Calculate the lighthouse distance from the sea - length of |P'M|.

## Correct answer:

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

**geometry**- similarity of triangles
**arithmetic**- absolute value
- subtraction
**planimetrics**- right triangle
- triangle
**basic functions**- ratio

### Units of physical quantities:

### Grade of the word problem:

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