# Circle's 81078

The chord of a circle is 233 long, and the length of the circular arc above the chord is 235. What is the circle's radius, and what is the central angle of the circular arc?

## Correct answer:

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

**algebra**- equation
**planimetrics**- Pythagorean theorem
- right triangle
- circle
- triangle
- circular arc
- chord
**goniometry and trigonometry**- sine

#### Units of physical quantities:

#### Grade of the word problem:

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