# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 2.9   b = 4.01   c = 6.2

Area: T = 4.6532518498
Perimeter: p = 13.11
Semiperimeter: s = 6.555

Angle ∠ A = α = 21.97990431552° = 21°58'45″ = 0.38436066695 rad
Angle ∠ B = β = 31.16661465669° = 31°9'58″ = 0.54439518728 rad
Angle ∠ C = γ = 126.8554810278° = 126°51'17″ = 2.21440341113 rad

Height: ha = 3.20986334469
Height: hb = 2.32204581037
Height: hc = 1.50108124187

Median: ma = 5.01657302559
Median: mb = 4.40551078307
Median: mc = 1.6233283709

Inradius: r = 0.71097663613
Circumradius: R = 3.87442349993

Vertex coordinates: A[6.2; 0] B[0; 0] C[2.48114435484; 1.50108124187]
Centroid: CG[2.89438145161; 0.55002708062]
Coordinates of the circumscribed circle: U[3.1; -2.3243724775]
Coordinates of the inscribed circle: I[2.545; 0.71097663613]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 158.0210956845° = 158°1'15″ = 0.38436066695 rad
∠ B' = β' = 148.8343853433° = 148°50'2″ = 0.54439518728 rad
∠ C' = γ' = 53.14551897221° = 53°8'43″ = 2.21440341113 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.