Triangle calculator SSS - result

Please enter the triangle sides:

Right scalene triangle.

Sides: a = 175   b = 288   c = 337

Area: T = 25200
Perimeter: p = 800
Semiperimeter: s = 400

Angle ∠ A = α = 31.28444929144° = 31°17'4″ = 0.54660174062 rad
Angle ∠ B = β = 58.71655070856° = 58°42'56″ = 1.02547789206 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad

Height: ha = 288
Height: hb = 175
Height: hc = 149.5554896142

Median: ma = 300.999875415
Median: mb = 226.6329653841
Median: mc = 168.5

Inradius: r = 63
Circumradius: R = 168.5

Vertex coordinates: A[337; 0] B[0; 0] C[90.87553709199; 149.5554896142]
Centroid: CG[142.625512364; 49.85216320475]
Coordinates of the circumscribed circle: U[168.5; -0]
Coordinates of the inscribed circle: I[112; 63]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 148.7165507086° = 148°42'56″ = 0.54660174062 rad
∠ B' = β' = 121.2844492914° = 121°17'4″ = 1.02547789206 rad
∠ C' = γ' = 90° = 1.57107963268 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     