98 122 201 triangle

Obtuse scalene triangle.

Sides: a = 98   b = 122   c = 201

Area: T = 4462.064352907
Perimeter: p = 421
Semiperimeter: s = 210.5

Angle ∠ A = α = 21.34113355003° = 21°20'29″ = 0.37224765713 rad
Angle ∠ B = β = 26.93993686769° = 26°56'22″ = 0.47701806818 rad
Angle ∠ C = γ = 131.7199295823° = 131°43'9″ = 2.29989354005 rad

Height: ha = 91.06325210015
Height: hb = 73.14985824439
Height: hc = 44.39986420803

Median: ma = 158.8765737606
Median: mb = 145.882180147
Median: mc = 46.30106479436

Inradius: r = 21.19774514445
Circumradius: R = 134.6443757554

Vertex coordinates: A[201; 0] B[0; 0] C[87.36656716418; 44.39986420803]
Centroid: CG[96.12218905473; 14.87995473601]
Coordinates of the circumscribed circle: U[100.5; -89.60329656223]
Coordinates of the inscribed circle: I[88.5; 21.19774514445]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 158.65986645° = 158°39'31″ = 0.37224765713 rad
∠ B' = β' = 153.0610631323° = 153°3'38″ = 0.47701806818 rad
∠ C' = γ' = 48.28107041772° = 48°16'51″ = 2.29989354005 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     