4 13 16 triangle

Obtuse scalene triangle.

Sides: a = 4   b = 13   c = 16

Area: T = 18.9988355192
Perimeter: p = 33
Semiperimeter: s = 16.5

Angle ∠ A = α = 10.52656968806° = 10°31'33″ = 0.18437080666 rad
Angle ∠ B = β = 36.42199137286° = 36°25'12″ = 0.63656474079 rad
Angle ∠ C = γ = 133.0544389391° = 133°3'16″ = 2.32222371791 rad

Height: ha = 9.4999177596
Height: hb = 2.92328238757
Height: hc = 2.3754794399

Median: ma = 14.44395290782
Median: mb = 9.68224583655
Median: mc = 5.3398539126

Inradius: r = 1.15114154662
Circumradius: R = 10.94883162041

Vertex coordinates: A[16; 0] B[0; 0] C[3.219875; 2.3754794399]
Centroid: CG[6.406625; 0.7921598133]
Coordinates of the circumscribed circle: U[8; -7.47443312547]
Coordinates of the inscribed circle: I[3.5; 1.15114154662]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 169.4744303119° = 169°28'27″ = 0.18437080666 rad
∠ B' = β' = 143.5880086271° = 143°34'48″ = 0.63656474079 rad
∠ C' = γ' = 46.94656106092° = 46°56'44″ = 2.32222371791 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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