# Incircle of a triangle Calculator

## Calculates the radius and area of the incircle of a triangle given the three sides. | ||

Incircle of a triangle

[1-6] /6 | Disp-Num |

- Purpose of use
- cutting a record (music) in the shape of a triangle, needed to figure out the size needed for roughly 6" diameter incircle
- Comment/Request
- would be useful to input the diameter of incircle needed, with the results being the length of the three sides.

[1] 2021/10/14 17:42 50 years old level / Self-employed people / Very /

- Purpose of use
- Finding the inscribed circle of a boring bar so that it can be converted to an equivalent carbide insert
- Comment/Request
- really good calculator

other geometries would also be useful (i.e. parallelogram, I can find calcs that provide an exterior circle but non-that do interior)

[2] 2021/04/19 18:32 20 years old level / An engineer / Useful /

- Purpose of use
- Calculating useful area of patio shade.
- Comment/Request
- The inverse would also be useful but not so simple, e.g., what size triangle do I need for a given incircle area.

[3] 2018/05/29 18:15 30 years old level / An engineer / Useful /

- Purpose of use
- As the previous comment stated, this was used to find the circular radius of the USPS Medium Tube (which ironically is a triangular prism) for the purposes of shipping items of circular cross-section (cylinders). The answer was about 1.5 inches, so the "tubes" are way too small for the items I wanted to ship inside. But that''s perfect for blueprints, its designed application.

[4] 2018/03/12 02:01 60 years old level or over / An engineer / - /

- Purpose of use
- To see how big a triangular cabinet needs to be to store my dinner plates.
- Comment/Request
- Thanks!

[5] 2017/06/11 09:21 30 years old level / A homemaker / Very /

- Purpose of use
- Shipping large photo prints in triangular "tubes" and wanted to know the equivalent diameter when compared with actual circular tubes

[6] 2016/12/09 06:01 20 years old level / A homemaker / Very /

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