Triangle calculator SSS - result

Please enter the triangle sides:

Acute scalene triangle.

Sides: a = 0.26   b = 0.3   c = 0.33

Area: T = 0.03770509025
Perimeter: p = 0.89
Semiperimeter: s = 0.445

Angle ∠ A = α = 48.46108759577° = 48°27'39″ = 0.84658018439 rad
Angle ∠ B = β = 59.73297497456° = 59°43'47″ = 1.04224807945 rad
Angle ∠ C = γ = 71.80993742967° = 71°48'34″ = 1.25333100153 rad

Height: ha = 0.28550069422
Height: hb = 0.24770060166
Height: hc = 0.22545509242

Median: ma = 0.2877315158
Median: mb = 0.25664176281
Median: mc = 0.2277101299

Inradius: r = 0.0833260455
Circumradius: R = 0.17436799799

Vertex coordinates: A[0.33; 0] B[0; 0] C[0.13110606061; 0.22545509242]
Centroid: CG[0.15436868687; 0.07548503081]
Coordinates of the circumscribed circle: U[0.165; 0.05442193271]
Coordinates of the inscribed circle: I[0.145; 0.0833260455]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 131.5399124042° = 131°32'21″ = 0.84658018439 rad
∠ B' = β' = 120.2770250254° = 120°16'13″ = 1.04224807945 rad
∠ C' = γ' = 108.1910625703° = 108°11'26″ = 1.25333100153 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     