# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 5.5   b = 5.82   c = 10.33

Area: T = 11.95502887459
Perimeter: p = 21.65
Semiperimeter: s = 10.825

Angle ∠ A = α = 23.42547250143° = 23°25'29″ = 0.40988385779 rad
Angle ∠ B = β = 24.87771296547° = 24°52'38″ = 0.43441878209 rad
Angle ∠ C = γ = 131.6988145331° = 131°41'53″ = 2.29985662548 rad

Height: ha = 4.34655595439
Height: hb = 4.1076628435
Height: hc = 2.31437054687

Median: ma = 7.9220110479
Median: mb = 7.74766992971
Median: mc = 2.32203394148

Inradius: r = 1.1043952771
Circumradius: R = 6.91774751136

Vertex coordinates: A[10.33; 0] B[0; 0] C[4.99896660213; 2.31437054687]
Centroid: CG[5.10765553404; 0.77112351562]
Coordinates of the circumscribed circle: U[5.165; -4.60215472341]
Coordinates of the inscribed circle: I[5.005; 1.1043952771]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 156.5755274986° = 156°34'31″ = 0.40988385779 rad
∠ B' = β' = 155.1232870345° = 155°7'22″ = 0.43441878209 rad
∠ C' = γ' = 48.30218546691° = 48°18'7″ = 2.29985662548 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.