# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 12   b = 17   c = 22

Area: T = 101.2199987648
Perimeter: p = 51
Semiperimeter: s = 25.5

Angle ∠ A = α = 32.76437577589° = 32°45'50″ = 0.57218354482 rad
Angle ∠ B = β = 50.05554864597° = 50°3'20″ = 0.87436330474 rad
Angle ∠ C = γ = 97.18107557815° = 97°10'51″ = 1.6966124158 rad

Height: ha = 16.8676664608
Height: hb = 11.90658808998
Height: hc = 9.21999988771

Median: ma = 18.72216452268
Median: mb = 15.54883118055
Median: mc = 9.77224101428

Inradius: r = 3.96986269666
Circumradius: R = 11.08769578749

Vertex coordinates: A[22; 0] B[0; 0] C[7.70545454545; 9.21999988771]
Centroid: CG[9.90215151515; 3.06766662924]
Coordinates of the circumscribed circle: U[11; -1.38658697344]
Coordinates of the inscribed circle: I[8.5; 3.96986269666]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 147.2366242241° = 147°14'10″ = 0.57218354482 rad
∠ B' = β' = 129.945451354° = 129°56'40″ = 0.87436330474 rad
∠ C' = γ' = 82.81992442185° = 82°49'9″ = 1.6966124158 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.