# Straight 21243

The straight railway line has a gradient of 16 permille. What is the size of the pitch angle?

## Correct answer:

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Our permille calculator will help you quickly calculate various typical tasks with permilles.

See also our right triangle calculator.

See also our trigonometric triangle calculator.

See also our right triangle calculator.

See also our trigonometric triangle calculator.

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

**planimetrics**- right triangle
- triangle
**basic functions**- per mil
**goniometry and trigonometry**- tangent
- arctangent

### Units of physical quantities:

### Grade of the word problem:

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