Triangle calculator ASA

Please enter the side of the triangle and two adjacent angles
°
°

Obtuse scalene triangle.

Sides: a = 141.9299455624   b = 84.51659493122   c = 200

Area: T = 5086.29767992
Perimeter: p = 426.4455404936
Semiperimeter: s = 213.2232702468

Angle ∠ A = α = 37° = 0.64657718232 rad
Angle ∠ B = β = 21° = 0.36765191429 rad
Angle ∠ C = γ = 122° = 2.12993016874 rad

Height: ha = 71.67435899091
Height: hb = 120.363300463
Height: hc = 50.8632967992

Median: ma = 136.1455070607
Median: mb = 168.1855162142
Median: mc = 60.36110638651

Inradius: r = 23.85443867061
Circumradius: R = 117.9187840336

Vertex coordinates: A[200; 0] B[0; 0] C[132.5032561714; 50.8632967992]
Centroid: CG[110.8344187238; 16.9544322664]
Coordinates of the circumscribed circle: U[100; -62.48769351909]
Coordinates of the inscribed circle: I[128.7076753156; 23.85443867061]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 143° = 0.64657718232 rad
∠ B' = β' = 159° = 0.36765191429 rad
∠ C' = γ' = 58° = 2.12993016874 rad

How did we calculate this triangle?

1. Calculate the third unknown inner angle 2. By using the law of sines, we calculate unknown side a 3. By using the law of sines, we calculate last unknown side b 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. 4. The triangle circumference is the sum of the lengths of its three sides 5. Semiperimeter of the triangle 6. The triangle area using Heron's formula 7. Calculate the heights of the triangle from its area. 8. Calculation of the inner angles of the triangle using a Law of Cosines     