# Arc and segment

Calculate the length of circular arc

**l**, area of the circular arc**S**and area of circular segment_{1}**S**. The circle's radius is 11, and the corresponding angle is $122 π$._{2}## Correct answer:

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Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

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

**algebra**- expression of a variable from the formula
**planimetrics**- circle
- area of a shape
- perimeter
- circular sector
- circular segment
**goniometry and trigonometry**- sine

### Units of physical quantities:

### Grade of the word problem:

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