# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 7.62   b = 12.04   c = 6.4

Area: T = 21.51102373188
Perimeter: p = 26.06
Semiperimeter: s = 13.03

Angle ∠ A = α = 33.93884112001° = 33°56'18″ = 0.59223370183 rad
Angle ∠ B = β = 118.0987725985° = 118°5'52″ = 2.06111941576 rad
Angle ∠ C = γ = 27.96438628144° = 27°57'50″ = 0.48880614777 rad

Height: ha = 5.64657315797
Height: hb = 3.57331291227
Height: hc = 6.72219491621

Median: ma = 8.8576901264
Median: mb = 3.64330481743
Median: mc = 9.55436903864

Inradius: r = 1.6510824046
Circumradius: R = 6.82442705938

Vertex coordinates: A[6.4; 0] B[0; 0] C[-3.589884375; 6.72219491621]
Centroid: CG[0.93770520833; 2.24106497207]
Coordinates of the circumscribed circle: U[3.2; 6.02774927737]
Coordinates of the inscribed circle: I[0.99; 1.6510824046]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 146.06215888° = 146°3'42″ = 0.59223370183 rad
∠ B' = β' = 61.90222740146° = 61°54'8″ = 2.06111941576 rad
∠ C' = γ' = 152.0366137186° = 152°2'10″ = 0.48880614777 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.