trigonometric Calculator tool
| Pythagorean theorem | c2 = a2 + b2 |
| area | a × b / 2 |
| c side height (h) | a × b / c |
| a Corner bisector | 2 × b × c × Cos(A/2) / (b + c) |
| b Corner bisector | 2 × a × c × Cos(B/2) / (a + c) |
| c bisector (tc) | tc2 = 2 × a2 × b2 / (a + b)2 |
| Median line on side a (ma) | M < sub > a < / sub > 2 = b 2 + 0.25 x a 2 |
| b side median line (mb) | M < sub > b < / sub > 2 = a 2 b + 0.25 x 2 |
| Center line on side c (mc) | mc = c / 2 |
| The radius of the tangent circle | a × b / ( a + b + c ) |
| The outer circle radius | c / 2 |