# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 37   b = 36.64   c = 54.94

Area: T = 673.4833335271
Perimeter: p = 128.58
Semiperimeter: s = 64.29

Angle ∠ A = α = 422.000217905° = 42°1″ = 0.7333042089 rad
Angle ∠ B = β = 41.55002216222° = 41°30'1″ = 0.72443155076 rad
Angle ∠ C = γ = 96.54995604728° = 96°29'58″ = 1.6844235057 rad

Height: ha = 36.40545046092
Height: hb = 36.76221907899
Height: hc = 24.51770489724

Median: ma = 42.87441950362
Median: mb = 43.10554451317
Median: mc = 24.51882360703

Inradius: r = 10.47657090569
Circumradius: R = 27.64876993933

Vertex coordinates: A[54.94; 0] B[0; 0] C[27.71112668365; 24.51770489724]
Centroid: CG[27.55504222788; 8.17223496575]
Coordinates of the circumscribed circle: U[27.47; -3.1329597697]
Coordinates of the inscribed circle: I[27.65; 10.47657090569]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 1387.999782095° = 137°59'59″ = 0.7333042089 rad
∠ B' = β' = 138.5499778378° = 138°29'59″ = 0.72443155076 rad
∠ C' = γ' = 83.55004395272° = 83°30'2″ = 1.6844235057 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    