4.8 3.3 5.5 triangle

Acute scalene triangle.

Sides: a = 4.8   b = 3.3   c = 5.5

Area: T = 7.86663841757
Perimeter: p = 13.6
Semiperimeter: s = 6.8

Angle ∠ A = α = 60.09110869792° = 60°5'28″ = 1.04987873189 rad
Angle ∠ B = β = 36.58795428375° = 36°34'46″ = 0.63884334614 rad
Angle ∠ C = γ = 83.32993701833° = 83°19'46″ = 1.45443718733 rad

Height: ha = 3.27876600732
Height: hb = 4.7687505561
Height: hc = 2.86105033366

Median: ma = 3.8488376281
Median: mb = 4.89110632791
Median: mc = 3.06663496213

Inradius: r = 1.15768212023
Circumradius: R = 2.7698743493

Vertex coordinates: A[5.5; 0] B[0; 0] C[3.85545454545; 2.86105033366]
Centroid: CG[3.11881818182; 0.95435011122]
Coordinates of the circumscribed circle: U[2.75; 0.32216217189]
Coordinates of the inscribed circle: I[3.5; 1.15768212023]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 119.9098913021° = 119°54'32″ = 1.04987873189 rad
∠ B' = β' = 143.4220457162° = 143°25'14″ = 0.63884334614 rad
∠ C' = γ' = 96.67106298167° = 96°40'14″ = 1.45443718733 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     