# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 55.9   b = 111.8   c = 125

Area: T = 3124.810999097
Perimeter: p = 292.7
Semiperimeter: s = 146.35

Angle ∠ A = α = 26.56441801886° = 26°33'51″ = 0.46436324074 rad
Angle ∠ B = β = 63.43114650674° = 63°25'53″ = 1.10770879148 rad
Angle ∠ C = γ = 90.0044354744° = 90°16″ = 1.57108723314 rad

Height: ha = 111.8799999677
Height: hb = 55.98999998385
Height: hc = 49.99769598556

Median: ma = 115.243286312
Median: mb = 79.05875423347
Median: mc = 62.49661998845

Inradius: r = 21.35216227603
Circumradius: R = 62.55000001805

Vertex coordinates: A[125; 0] B[0; 0] C[25.002228; 49.99769598556]
Centroid: CG[50.001076; 16.66656532852]
Coordinates of the circumscribed circle: U[62.5; -0.00547502888]
Coordinates of the inscribed circle: I[34.55; 21.35216227603]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 153.4365819811° = 153°26'9″ = 0.46436324074 rad
∠ B' = β' = 116.5698534933° = 116°34'7″ = 1.10770879148 rad
∠ C' = γ' = 89.9965645256° = 89°59'44″ = 1.57108723314 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.