100 90 11.17 triangle

Obtuse scalene triangle.

Sides: a = 100   b = 90   c = 11.17

Area: T = 235.9910850139
Perimeter: p = 201.17
Semiperimeter: s = 100.585

Angle ∠ A = α = 151.9998583893° = 151°59'55″ = 2.65328757473 rad
Angle ∠ B = β = 24.9955308303° = 24°59'43″ = 0.43662504274 rad
Angle ∠ C = γ = 3.0066107804° = 3°22″ = 0.05224664788 rad

Height: ha = 4.72198170028
Height: hb = 5.24442411142
Height: hc = 42.25444046803

Median: ma = 40.1554507219
Median: mb = 55.11224709118
Median: mc = 94.96774037499

Inradius: r = 2.34661833289
Circumradius: R = 106.498777305

Vertex coordinates: A[11.17; 0] B[0; 0] C[90.63442390331; 42.25444046803]
Centroid: CG[33.93547463444; 14.08548015601]
Coordinates of the circumscribed circle: U[5.585; 106.3511226789]
Coordinates of the inscribed circle: I[10.585; 2.34661833289]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 28.0011416107° = 28°5″ = 2.65328757473 rad
∠ B' = β' = 155.0054691697° = 155°17″ = 0.43662504274 rad
∠ C' = γ' = 176.9943892196° = 176°59'38″ = 0.05224664788 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     