14 19 30 triangle

Obtuse scalene triangle.

Sides: a = 14   b = 19   c = 30

Area: T = 101.6665812838
Perimeter: p = 63
Semiperimeter: s = 31.5

Angle ∠ A = α = 20.8999027966° = 20°53'57″ = 0.36547568485 rad
Angle ∠ B = β = 28.95550243719° = 28°57'18″ = 0.50553605103 rad
Angle ∠ C = γ = 130.1465947662° = 130°8'45″ = 2.27114752948 rad

Height: ha = 14.52436875483
Height: hb = 10.70216645093
Height: hc = 6.77877208559

Median: ma = 24.11443111036
Median: mb = 21.39550928953
Median: mc = 7.31443694192

Vertex coordinates: A[30; 0] B[0; 0] C[12.25; 6.77877208559]
Centroid: CG[14.08333333333; 2.25992402853]
Coordinates of the circumscribed circle: U[15; -12.65217455976]
Coordinates of the inscribed circle: I[12.5; 3.22774861218]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 159.1010972034° = 159°6'3″ = 0.36547568485 rad
∠ B' = β' = 151.0454975628° = 151°2'42″ = 0.50553605103 rad
∠ C' = γ' = 49.85440523379° = 49°51'15″ = 2.27114752948 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    