4.24 5.1 2.83 triangle

Obtuse scalene triangle.

Sides: a = 4.24   b = 5.1   c = 2.83

Area: T = 65.9995971235
Perimeter: p = 12.17
Semiperimeter: s = 6.085

Angle ∠ A = α = 56.24399501064° = 56°14'24″ = 0.98215723005 rad
Angle ∠ B = β = 90.05661058668° = 90°3'22″ = 1.57217755589 rad
Angle ∠ C = γ = 33.70439440268° = 33°42'14″ = 0.58882447942 rad

Height: ha = 2.83299986432
Height: hb = 2.35327831857
Height: hc = 4.24399979671

Median: ma = 3.53876616571
Median: mb = 2.54876950367
Median: mc = 4.47111939121

Inradius: r = 0.98659650162
Circumradius: R = 2.55500012226

Vertex coordinates: A[2.83; 0] B[0; 0] C[-0.00441519435; 4.24399979671]
Centroid: CG[0.94219493522; 1.41333326557]
Coordinates of the circumscribed circle: U[1.415; 2.12113866303]
Coordinates of the inscribed circle: I[0.985; 0.98659650162]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.7660049894° = 123°45'36″ = 0.98215723005 rad
∠ B' = β' = 89.94438941332° = 89°56'38″ = 1.57217755589 rad
∠ C' = γ' = 146.2966055973° = 146°17'46″ = 0.58882447942 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     