# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 37.7   b = 35.3   c = 57.81

Area: T = 643.6776653201
Perimeter: p = 130.81
Semiperimeter: s = 65.405

Angle ∠ A = α = 39.11222151414° = 39°6'44″ = 0.6832636932 rad
Angle ∠ B = β = 36.20553906274° = 36°12'19″ = 0.63219032734 rad
Angle ∠ C = γ = 104.6822394231° = 104°40'57″ = 1.82770524482 rad

Height: ha = 34.14773025571
Height: hb = 36.46989321927
Height: hc = 22.26986958381

Median: ma = 44.03109044876
Median: mb = 45.49985774503
Median: mc = 22.32201920915

Inradius: r = 9.84113982601
Circumradius: R = 29.88107350389

Vertex coordinates: A[57.81; 0] B[0; 0] C[30.42203087701; 22.26986958381]
Centroid: CG[29.41101029234; 7.42328986127]
Coordinates of the circumscribed circle: U[28.905; -7.5743592375]
Coordinates of the inscribed circle: I[30.105; 9.84113982601]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 140.8887784859° = 140°53'16″ = 0.6832636932 rad
∠ B' = β' = 143.7954609373° = 143°47'41″ = 0.63219032734 rad
∠ C' = γ' = 75.31876057688° = 75°19'3″ = 1.82770524482 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.