# Cone A2V

The cone's surface in the plane is a circular arc with a central angle of 126° and area 415 cm

Calculate the volume of a cone.

^{2}.Calculate the volume of a cone.

### Correct answer:

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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:

**algebra**- expression of a variable from the formula
**solid geometry**- cone
- surface area
**planimetrics**- Pythagorean theorem
- right triangle
- circle
- triangle
- circular sector
**numbers**- fractions
- real numbers

#### Units of physical quantities:

#### Grade of the word problem:

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