11 16 26 triangle

Obtuse scalene triangle.

Sides: a = 11   b = 16   c = 26

Area: T = 46.43774579408
Perimeter: p = 53
Semiperimeter: s = 26.5

Angle ∠ A = α = 12.99004051848° = 12°54'1″ = 0.22551545453 rad
Angle ∠ B = β = 18.95496703376° = 18°56'59″ = 0.33107341396 rad
Angle ∠ C = γ = 148.1549924478° = 148°9' = 2.58657039687 rad

Height: ha = 8.4433174171
Height: hb = 5.80546822426
Height: hc = 3.57221121493

Median: ma = 20.87546257451
Median: mb = 18.28993411582
Median: mc = 4.41658804332

Inradius: r = 1.75223569034
Circumradius: R = 24.63552847621

Vertex coordinates: A[26; 0] B[0; 0] C[10.40438461538; 3.57221121493]
Centroid: CG[12.13546153846; 1.19107040498]
Coordinates of the circumscribed circle: U[13; -20.92659947269]
Coordinates of the inscribed circle: I[10.5; 1.75223569034]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 167.1099594815° = 167°5'59″ = 0.22551545453 rad
∠ B' = β' = 161.0550329662° = 161°3'1″ = 0.33107341396 rad
∠ C' = γ' = 31.85500755224° = 31°51' = 2.58657039687 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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