Triangle calculator

Please enter what you know about the triangle:
You have entered side a, b and c.

Right scalene triangle.

Sides: a = 1.73220508076   b = 2.23660679775   c = 2.82884271247

Area: T = 1.93664916731
Perimeter: p = 6.79765459098
Semiperimeter: s = 3.39882729549

Angle ∠ A = α = 37.7611243907° = 37°45'40″ = 0.65990580358 rad
Angle ∠ B = β = 52.2398756093° = 52°14'20″ = 0.9121738291 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad

Height: ha = 2.23660679775
Height: hb = 1.73220508076
Height: hc = 1.36993063938

Median: ma = 2.39879157617
Median: mb = 2.06215528128
Median: mc = 1.41442135624

Inradius: r = 0.57698458302
Circumradius: R = 1.41442135624

Vertex coordinates: A[2.82884271247; 0] B[0; 0] C[1.06106601718; 1.36993063938]
Centroid: CG[1.29663624322; 0.45664354646]
Coordinates of the circumscribed circle: U[1.41442135624; 0]
Coordinates of the inscribed circle: I[1.16222049774; 0.57698458302]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 142.2398756093° = 142°14'20″ = 0.65990580358 rad
∠ B' = β' = 127.7611243907° = 127°45'40″ = 0.9121738291 rad
∠ C' = γ' = 90° = 1.57107963268 rad

How did we calculate this triangle?

1. Input data entered: side a, b and c. 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     