21 23 29 triangle

Acute scalene triangle.

Sides: a = 21   b = 23   c = 29

Area: T = 239.3376974787
Perimeter: p = 73
Semiperimeter: s = 36.5

Angle ∠ A = α = 45.86109720011° = 45°51'39″ = 0.88004249596 rad
Angle ∠ B = β = 51.81332531795° = 51°48'48″ = 0.90443118642 rad
Angle ∠ C = γ = 82.32657748194° = 82°19'33″ = 1.43768558299 rad

Height: ha = 22.79439975987
Height: hb = 20.8121910851
Height: hc = 16.50659982611

Median: ma = 23.97439441895
Median: mb = 22.55554871373
Median: mc = 16.57655844543

Inradius: r = 6.55771773914
Circumradius: R = 14.63110447983

Vertex coordinates: A[29; 0] B[0; 0] C[12.98327586207; 16.50659982611]
Centroid: CG[13.99442528736; 5.50219994204]
Coordinates of the circumscribed circle: U[14.5; 1.95438351749]
Coordinates of the inscribed circle: I[13.5; 6.55771773914]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 134.1399027999° = 134°8'21″ = 0.88004249596 rad
∠ B' = β' = 128.1876746821° = 128°11'12″ = 0.90443118642 rad
∠ C' = γ' = 97.67442251806° = 97°40'27″ = 1.43768558299 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.


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