100 60 159 triangle

Obtuse scalene triangle.

Sides: a = 100   b = 60   c = 159

Area: T = 687.1244397398
Perimeter: p = 319
Semiperimeter: s = 159.5

Angle ∠ A = α = 8.28223422543° = 8°16'56″ = 0.14545541421 rad
Angle ∠ B = β = 4.95883031558° = 4°57'30″ = 0.08765387154 rad
Angle ∠ C = γ = 166.759935459° = 166°45'34″ = 2.91104997961 rad

Height: ha = 13.7422487948
Height: hb = 22.90441465799
Height: hc = 8.64330741811

Median: ma = 109.2732594918
Median: mb = 129.3855084148
Median: mc = 21.90331961138

Inradius: r = 4.30879899523
Circumradius: R = 347.0998721721

Vertex coordinates: A[159; 0] B[0; 0] C[99.62657861635; 8.64330741811]
Centroid: CG[86.20985953878; 2.8811024727]
Coordinates of the circumscribed circle: U[79.5; -337.8721680701]
Coordinates of the inscribed circle: I[99.5; 4.30879899523]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 171.7187657746° = 171°43'4″ = 0.14545541421 rad
∠ B' = β' = 175.0421696844° = 175°2'30″ = 0.08765387154 rad
∠ C' = γ' = 13.24106454101° = 13°14'26″ = 2.91104997961 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     