Triangle calculator

Please enter what you know about the triangle:
Symbols definition of ABC triangle

You have entered side a, c and angle α.

Triangle has two solutions: a=63; b=103.0022383815; c=160 and a=63; b=210.0054848419; c=160.

#1 Obtuse scalene triangle.

Sides: a = 63   b = 103.0022383815   c = 160

Area: T = 1713.232198219
Perimeter: p = 326.0022383816
Semiperimeter: s = 163.0011191908

Angle ∠ A = α = 12° = 0.20994395102 rad
Angle ∠ B = β = 19.87224253972° = 19°52'21″ = 0.34768392535 rad
Angle ∠ C = γ = 148.1287574603° = 148°7'39″ = 2.58553138898 rad

Height: ha = 54.38883168948
Height: hb = 33.26658705308
Height: hc = 21.41553997773

Median: ma = 130.8154737457
Median: mb = 110.1465936067
Median: mc = 29.82202202513

Inradius: r = 10.51105488011
Circumradius: R = 151.5076631859

Vertex coordinates: A[160; 0] B[0; 0] C[59.2488465401; 21.41553997773]
Centroid: CG[73.08328218003; 7.13884665924]
Coordinates of the circumscribed circle: U[80; -128.6633357244]
Coordinates of the inscribed circle: I[59.99988080923; 10.51105488011]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 168° = 0.20994395102 rad
∠ B' = β' = 160.1287574603° = 160°7'39″ = 0.34768392535 rad
∠ C' = γ' = 31.87224253972° = 31°52'21″ = 2.58553138898 rad




How did we calculate this triangle?

1. Input data entered: side a, c and angle α.


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