26 27 28 triangle

Acute scalene triangle.

Sides: a = 26   b = 27   c = 28

Area: T = 314.7999043042
Perimeter: p = 81
Semiperimeter: s = 40.5

Angle ∠ A = α = 56.38876254015° = 56°23'15″ = 0.98441497206 rad
Angle ∠ B = β = 59.86435885334° = 59°51'49″ = 1.0454816722 rad
Angle ∠ C = γ = 63.7498786065° = 63°44'56″ = 1.1132626211 rad

Height: ha = 24.21553110032
Height: hb = 23.31884476327
Height: hc = 22.48656459316

Median: ma = 24.23883992871
Median: mb = 23.40440594769
Median: mc = 22.50655548699

Inradius: r = 7.77328158776
Circumradius: R = 15.61099585072

Vertex coordinates: A[28; 0] B[0; 0] C[13.05435714286; 22.48656459316]
Centroid: CG[13.68545238095; 7.49552153105]
Coordinates of the circumscribed circle: U[14; 6.90444047244]
Coordinates of the inscribed circle: I[13.5; 7.77328158776]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.6122374598° = 123°36'45″ = 0.98441497206 rad
∠ B' = β' = 120.1366411467° = 120°8'11″ = 1.0454816722 rad
∠ C' = γ' = 116.2511213935° = 116°15'4″ = 1.1132626211 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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