# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 100   b = 90   c = 25.51

Area: T = 1104.655002694
Perimeter: p = 215.51
Semiperimeter: s = 107.755

Angle ∠ A = α = 105.7876818166° = 105°47'13″ = 1.84663282822 rad
Angle ∠ B = β = 60.00331108208° = 60°11″ = 1.04772518453 rad
Angle ∠ C = γ = 14.21100710131° = 14°12'36″ = 0.24880125261 rad

Height: ha = 22.09330005388
Height: hb = 24.54877783764
Height: hc = 86.6055254954

Median: ma = 43.30656584063
Median: mb = 57.44989342808
Median: mc = 94.2732530331

Inradius: r = 10.25114967003
Circumradius: R = 51.96598955328

Vertex coordinates: A[25.51; 0] B[0; 0] C[49.99552979224; 86.6055254954]
Centroid: CG[25.16884326408; 28.8688418318]
Coordinates of the circumscribed circle: U[12.755; 50.37700379072]
Coordinates of the inscribed circle: I[17.755; 10.25114967003]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 74.21331818339° = 74°12'47″ = 1.84663282822 rad
∠ B' = β' = 119.9976889179° = 119°59'49″ = 1.04772518453 rad
∠ C' = γ' = 165.7989928987° = 165°47'24″ = 0.24880125261 rad

# How did we calculate this triangle?

### 1. The triangle circumference is the sum of the lengths of its three sides ### 2. Semiperimeter of the triangle ### 3. The triangle area using Heron's formula ### 4. Calculate the heights of the triangle from its area. ### 5. Calculation of the inner angles of the triangle using a Law of Cosines ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.