SSS Theorem
Specifying three sides uniquely determines a Triangle whose Area is given by Heron's Formula,
 | (1) |
 | (2) |
be the Circumradius, then | (3) |
 |  |  | (4) |
 | |  | (5) |
 | |  | (6) |
gives the three Angles as
 | |  | (7) |
 | |  | (8) |
 | |  | (9) |
See also AAA Theorem, AAS Theorem, ASA Theorem, ASS Theorem, Heron's Formula,SAS Theorem, Semiperimeter, Triangle
- First Digit Phenomenon
- First Multiplier Theorem
- Fischer Groups
- Fischer's Baby Monster Group
- Fish Bladder
- Fisher-Behrens Problem
- Fisher Index
- Fisher Kurtosis
- Fisher's Block Design Inequality
- Fisher's Estimator Inequality
- Fisher's Exact Test
- Fisher Sign Test
- Fisher Skewness
- Fisher's Theorem
- Fisher's z-Distribution
- Fisher's z'-Transformation
- Fisher-Tippett Distribution
- Fitting Subgroup
- Five Cubes
- Five Disks Problem
- Five Tetrahedra Compound
- Fixed
- Fixed Element
- Fixed Point
- Fixed Point (Differential Equations)