# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 4.18   b = 5.7   c = 8.27

Area: T = 10.9865870965
Perimeter: p = 18.15
Semiperimeter: s = 9.075

Angle ∠ A = α = 27.78217844069° = 27°46'54″ = 0.485488361 rad
Angle ∠ B = β = 39.46443702551° = 39°27'52″ = 0.68987831982 rad
Angle ∠ C = γ = 112.7543845338° = 112°45'14″ = 1.96879258454 rad

Height: ha = 5.25663975909
Height: hb = 3.85546915667
Height: hc = 2.6576800717

Median: ma = 6.7887735263
Median: mb = 5.99000127119
Median: mc = 2.80876636195

Inradius: r = 1.21105642937
Circumradius: R = 4.48439644628

Vertex coordinates: A[8.27; 0] B[0; 0] C[3.22770435308; 2.6576800717]
Centroid: CG[3.83223478436; 0.8865600239]
Coordinates of the circumscribed circle: U[4.135; -1.73442757289]
Coordinates of the inscribed circle: I[3.375; 1.21105642937]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152.2188215593° = 152°13'6″ = 0.485488361 rad
∠ B' = β' = 140.5365629745° = 140°32'8″ = 0.68987831982 rad
∠ C' = γ' = 67.2466154662° = 67°14'46″ = 1.96879258454 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.