197 208 299 triangle
Obtuse scalene triangle.
Sides: a = 197 b = 208 c = 299Area: T = 20405.92985503
Perimeter: p = 704
Semiperimeter: s = 352
Angle ∠ A = α = 41.01224937709° = 41°45″ = 0.71658030508 rad
Angle ∠ B = β = 43.85773690016° = 43°51'27″ = 0.76554554903 rad
Angle ∠ C = γ = 95.13301372275° = 95°7'49″ = 1.66603341125 rad
Height: ha = 207.1676787313
Height: hb = 196.2110851445
Height: hc = 136.4954505353
Median: ma = 237.9711111692
Median: mb = 230.8444103238
Median: mc = 136.6987659087
Inradius: r = 57.9711387927
Circumradius: R = 150.1011280246
Vertex coordinates: A[299; 0] B[0; 0] C[142.0550167224; 136.4954505353]
Centroid: CG[147.0176722408; 45.49881684511]
Coordinates of the circumscribed circle: U[149.5; -13.42217856994]
Coordinates of the inscribed circle: I[144; 57.9711387927]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 138.9887506229° = 138°59'15″ = 0.71658030508 rad
∠ B' = β' = 136.1432630998° = 136°8'33″ = 0.76554554903 rad
∠ C' = γ' = 84.87698627725° = 84°52'11″ = 1.66603341125 rad
Calculate another triangle
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

6. Inradius

7. Circumradius
