# Airplane navigation

An airplane leaves an airport and flies west 120 miles and then 150 miles in the direction S 44.1°W. How far is the plane from the airport (round to the nearest mile)?

### Correct answer:

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

**geometry**- vector
**arithmetic**- absolute value
**planimetrics**- Pythagorean theorem
- right triangle
- triangle
**goniometry and trigonometry**- sine
- cosine

#### Units of physical quantities:

#### Grade of the word problem:

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