Triangle calculator SSS - result

Please enter the triangle sides:

Acute scalene triangle.

Sides: a = 3.4   b = 3.59   c = 4.8

Area: T = 6.09328390262
Perimeter: p = 11.79
Semiperimeter: s = 5.895

Angle ∠ A = α = 45.00438277215° = 45°14″ = 0.78554649697 rad
Angle ∠ B = β = 48.30328653421° = 48°18'10″ = 0.84330440384 rad
Angle ∠ C = γ = 86.69333069364° = 86°41'36″ = 1.51330836455 rad

Height: ha = 3.58440229566
Height: hb = 3.39443392904
Height: hc = 2.53986829276

Median: ma = 3.88325313907
Median: mb = 3.7522062766
Median: mc = 2.54224496062

Inradius: r = 1.03435604794
Circumradius: R = 2.40440024588

Vertex coordinates: A[4.8; 0] B[0; 0] C[2.262165625; 2.53986829276]
Centroid: CG[2.35438854167; 0.84662276425]
Coordinates of the circumscribed circle: U[2.4; 0.13986644217]
Coordinates of the inscribed circle: I[2.305; 1.03435604794]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 134.9966172278° = 134°59'46″ = 0.78554649697 rad
∠ B' = β' = 131.6977134658° = 131°41'50″ = 0.84330440384 rad
∠ C' = γ' = 93.30766930636° = 93°18'24″ = 1.51330836455 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     