Triangle calculator SAS

Please enter two sides of the triangle and the included angle
°

Obtuse scalene triangle.

Sides: a = 2000   b = 1700   c = 3499.782186813

Area: T = 1046624.508805
Perimeter: p = 7199.782186813
Semiperimeter: s = 3599.891093407

Angle ∠ A = α = 20.59991942438° = 20°35'57″ = 0.36595237628 rad
Angle ∠ B = β = 17.40108057562° = 17°24'3″ = 0.30437013529 rad
Angle ∠ C = γ = 142° = 2.47883675378 rad

Height: ha = 1046.625450805
Height: hb = 1231.323295065
Height: hc = 598.1088423604

Median: ma = 2563.052219655
Median: mb = 2720.613326952
Median: mc = 618.7744368303

Inradius: r = 290.7387838235
Circumradius: R = 2842.294402715

Vertex coordinates: A[3499.782186813; 0] B[0; 0] C[1908.472224596; 598.1088423604]
Centroid: CG[1802.751137137; 199.3699474535]
Coordinates of the circumscribed circle: U[1749.891093407; -2239.758825831]
Coordinates of the inscribed circle: I[1899.891093407; 290.7387838235]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 159.4010805756° = 159°24'3″ = 0.36595237628 rad
∠ B' = β' = 162.5999194244° = 162°35'57″ = 0.30437013529 rad
∠ C' = γ' = 38° = 2.47883675378 rad

How did we calculate this triangle?

1. Calculation of the third side c of the triangle using a Law of Cosines 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. 2. The triangle circumference is the sum of the lengths of its three sides 3. Semiperimeter of the triangle 4. The triangle area using Heron's formula 5. Calculate the heights of the triangle from its area. 6. Calculation of the inner angles of the triangle using a Law of Cosines     