Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 43   b = 26.49   c = 50.51

Area: T = 569.5354984
Perimeter: p = 120
Semiperimeter: s = 60

Angle ∠ A = α = 58.35551543243° = 58°21'19″ = 1.01884895785 rad
Angle ∠ B = β = 31.63112645432° = 31°37'53″ = 0.55220697128 rad
Angle ∠ C = γ = 90.01435811325° = 90°49″ = 1.57110333623 rad

Height: ha = 26.49899992558
Height: hb = 432.999998792
Height: hc = 22.55113753316

Median: ma = 34.12109627648
Median: mb = 44.9976666821
Median: mc = 25.2549653958

Inradius: r = 9.49222497333
Circumradius: R = 25.25550007095

Vertex coordinates: A[50.51; 0] B[0; 0] C[36.61219580281; 22.55113753316]
Centroid: CG[29.0410652676; 7.51771251105]
Coordinates of the circumscribed circle: U[25.255; -0.00659863311]
Coordinates of the inscribed circle: I[33.51; 9.49222497333]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 121.6454845676° = 121°38'41″ = 1.01884895785 rad
∠ B' = β' = 148.3698735457° = 148°22'7″ = 0.55220697128 rad
∠ C' = γ' = 89.98664188675° = 89°59'11″ = 1.57110333623 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     