Triangle calculator

Please enter what you know about the triangle:
You have entered side a, b and angle γ.

Obtuse scalene triangle.

Sides: a = 0.03   b = 0.33   c = 0.34659768778

Area: T = 0.00442868257
Perimeter: p = 0.70659768778
Semiperimeter: s = 0.35329884389

Angle ∠ A = α = 4.30766190955° = 4°18'24″ = 0.07551646828 rad
Angle ∠ B = β = 55.69333809045° = 55°41'36″ = 0.97220328684 rad
Angle ∠ C = γ = 120° = 2.09443951024 rad

Height: ha = 0.28657883832
Height: hb = 0.02659807621
Height: hc = 0.02547809956

Median: ma = 0.33877499075
Median: mb = 0.18218653348
Median: mc = 0.15880348063

Inradius: r = 0.012214438
Circumradius: R = 0.21997498436

Vertex coordinates: A[0.34659768778; 0] B[0; 0] C[0.01769086444; 0.02547809956]
Centroid: CG[0.12109618407; 0.00882603319]
Coordinates of the circumscribed circle: U[0.17329884389; -0.10998749218]
Coordinates of the inscribed circle: I[0.02329884389; 0.012214438]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 175.6933380904° = 175°41'36″ = 0.07551646828 rad
∠ B' = β' = 124.3076619096° = 124°18'24″ = 0.97220328684 rad
∠ C' = γ' = 60° = 2.09443951024 rad

How did we calculate this triangle?

1. Input data entered: side a, b and angle γ. 2. Calculation of the third side c of the triangle using a Law of Cosines Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS. 3. The triangle circumference is the sum of the lengths of its three sides 4. Semiperimeter of the triangle 5. The triangle area using Heron's formula 6. Calculate the heights of the triangle from its area. 7. Calculation of the inner angles of the triangle using a Law of Cosines     