3.53 2.4 5.85 triangle

Obtuse scalene triangle.

Sides: a = 3.53   b = 2.4   c = 5.85

Area: T = 1.39330168125
Perimeter: p = 11.78
Semiperimeter: s = 5.89

Angle ∠ A = α = 11.44554829155° = 11°26'44″ = 0.21997613614 rad
Angle ∠ B = β = 7.75436247459° = 7°45'13″ = 0.13553262808 rad
Angle ∠ C = γ = 160.8010892339° = 160°48'3″ = 2.80765050115 rad

Height: ha = 0.7899244653
Height: hb = 1.16108473438
Height: hc = 0.47662450641

Median: ma = 4.10880439384
Median: mb = 4.68799252131
Median: mc = 0.74548657597

Inradius: r = 0.23765054011
Circumradius: R = 8.8954580373

Vertex coordinates: A[5.85; 0] B[0; 0] C[3.49877264957; 0.47662450641]
Centroid: CG[3.11659088319; 0.15987483547]
Coordinates of the circumscribed circle: U[2.925; -8.43998770831]
Coordinates of the inscribed circle: I[3.49; 0.23765054011]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 168.5554517085° = 168°33'16″ = 0.21997613614 rad
∠ B' = β' = 172.2466375254° = 172°14'47″ = 0.13553262808 rad
∠ C' = γ' = 19.19991076613° = 19°11'57″ = 2.80765050115 rad

How did we calculate this triangle?

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS. 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     