11 19 25 triangle

Obtuse scalene triangle.

Sides: a = 11   b = 19   c = 25

Area: T = 98.19546408925
Perimeter: p = 55
Semiperimeter: s = 27.5

Angle ∠ A = α = 24.42218139126° = 24°25'19″ = 0.42662410621 rad
Angle ∠ B = β = 45.57329959992° = 45°34'23″ = 0.79553988302 rad
Angle ∠ C = γ = 110.0055190088° = 110°19″ = 1.92199527613 rad

Height: ha = 17.85435710714
Height: hb = 10.33662779887
Height: hc = 7.85655712714

Median: ma = 21.51216247643
Median: mb = 16.81551717208
Median: mc = 9.20659763198

Inradius: r = 3.57107142143
Circumradius: R = 13.30326607983

Vertex coordinates: A[25; 0] B[0; 0] C[7.7; 7.85655712714]
Centroid: CG[10.9; 2.61985237571]
Coordinates of the circumscribed circle: U[12.5; -4.55109102731]
Coordinates of the inscribed circle: I[8.5; 3.57107142143]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 155.5788186087° = 155°34'41″ = 0.42662410621 rad
∠ B' = β' = 134.4277004001° = 134°25'37″ = 0.79553988302 rad
∠ C' = γ' = 69.99548099118° = 69°59'41″ = 1.92199527613 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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