38.3 33.1 55.52 triangle

Obtuse scalene triangle.

Sides: a = 38.3   b = 33.1   c = 55.52

Area: T = 620.3922425945
Perimeter: p = 126.92
Semiperimeter: s = 63.46

Angle ∠ A = α = 42.46880648652° = 42°28'5″ = 0.74112075588 rad
Angle ∠ B = β = 35.69877930235° = 35°41'52″ = 0.6233044024 rad
Angle ∠ C = γ = 101.8344142111° = 101°50'3″ = 1.77773410708 rad

Height: ha = 32.39664713287
Height: hb = 37.4865947187
Height: hc = 22.34884303294

Median: ma = 41.50108156546
Median: mb = 44.73300536552
Median: mc = 22.59771768148

Inradius: r = 9.77661176481
Circumradius: R = 28.36328420724

Vertex coordinates: A[55.52; 0] B[0; 0] C[31.10436599424; 22.34884303294]
Centroid: CG[28.87545533141; 7.44994767765]
Coordinates of the circumscribed circle: U[27.76; -5.81766322236]
Coordinates of the inscribed circle: I[30.36; 9.77661176481]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 137.5321935135° = 137°31'55″ = 0.74112075588 rad
∠ B' = β' = 144.3022206977° = 144°18'8″ = 0.6233044024 rad
∠ C' = γ' = 78.16658578887° = 78°9'57″ = 1.77773410708 rad

How did we calculate this triangle?

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. 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     