200 200 350 triangle

Obtuse isosceles triangle.

Sides: a = 200   b = 200   c = 350

Area: T = 16944.30221397
Perimeter: p = 750
Semiperimeter: s = 375

Angle ∠ A = α = 28.95550243719° = 28°57'18″ = 0.50553605103 rad
Angle ∠ B = β = 28.95550243719° = 28°57'18″ = 0.50553605103 rad
Angle ∠ C = γ = 122.0989951256° = 122°5'24″ = 2.1310871633 rad

Height: ha = 169.4433021397
Height: hb = 169.4433021397
Height: hc = 96.82545836552

Median: ma = 266.9276956301
Median: mb = 266.9276956301
Median: mc = 96.82545836552

Vertex coordinates: A[350; 0] B[0; 0] C[175; 96.82545836552]
Centroid: CG[175; 32.27548612184]
Coordinates of the circumscribed circle: U[175; -109.7354528142]
Coordinates of the inscribed circle: I[175; 45.18548057058]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 151.0454975628° = 151°2'42″ = 0.50553605103 rad
∠ B' = β' = 151.0454975628° = 151°2'42″ = 0.50553605103 rad
∠ C' = γ' = 57.91100487437° = 57°54'36″ = 2.1310871633 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    