191 122 161 triangle
Acute scalene triangle.
Sides: a = 191 b = 122 c = 161Area: T = 9761.326572963
Perimeter: p = 474
Semiperimeter: s = 237
Angle ∠ A = α = 83.68106343729° = 83°40'50″ = 1.461050259 rad
Angle ∠ B = β = 39.41097743666° = 39°24'35″ = 0.68878303202 rad
Angle ∠ C = γ = 56.91095912606° = 56°54'35″ = 0.99332597435 rad
Height: ha = 102.2132834865
Height: hb = 160.0221733273
Height: hc = 121.2598704716
Median: ma = 106.2187936338
Median: mb = 165.7710926281
Median: mc = 138.5722183356
Inradius: r = 41.18770283951
Circumradius: R = 96.08438236504
Vertex coordinates: A[161; 0] B[0; 0] C[147.5711428571; 121.2598704716]
Centroid: CG[102.8577142857; 40.42195682386]
Coordinates of the circumscribed circle: U[80.5; 52.45880896266]
Coordinates of the inscribed circle: I[115; 41.18770283951]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 96.31993656271° = 96°19'10″ = 1.461050259 rad
∠ B' = β' = 140.5990225633° = 140°35'25″ = 0.68878303202 rad
∠ C' = γ' = 123.0990408739° = 123°5'25″ = 0.99332597435 rad
Calculate another triangle
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

6. Inradius

7. Circumradius
