Triangle calculator

Please enter what you know about the triangle:
Symbols definition of ABC triangle

You have entered side a, b and c.

Acute scalene triangle.

Sides: a = 554   b = 541   c = 470

Area: T = 116163.2776624
Perimeter: p = 1565
Semiperimeter: s = 782.5

Angle ∠ A = α = 66.02218092982° = 66°1'19″ = 1.15222979504 rad
Angle ∠ B = β = 63.15985743763° = 63°9'31″ = 1.10223250737 rad
Angle ∠ C = γ = 50.82196163254° = 50°49'11″ = 0.88769696295 rad

Height: ha = 419.3622009472
Height: hb = 429.4399100272
Height: hc = 494.312181542

Median: ma = 424.3376540967
Median: mb = 436.7355331751
Median: mc = 494.5443729108

Inradius: r = 148.4511471723
Circumradius: R = 303.1632892986

Vertex coordinates: A[470; 0] B[0; 0] C[250.1443617021; 494.312181542]
Centroid: CG[240.048787234; 164.771060514]
Coordinates of the circumscribed circle: U[235; 191.527738625]
Coordinates of the inscribed circle: I[241.5; 148.4511471723]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 113.9788190702° = 113°58'41″ = 1.15222979504 rad
∠ B' = β' = 116.8411425624° = 116°50'29″ = 1.10223250737 rad
∠ C' = γ' = 129.1880383675° = 129°10'49″ = 0.88769696295 rad

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How did we calculate this triangle?

1. Input data entered: side a, b and c.


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