11 21 29 triangle

Obtuse scalene triangle.

Sides: a = 11   b = 21   c = 29

Area: T = 92.06107815522
Perimeter: p = 61
Semiperimeter: s = 30.5

Angle ∠ A = α = 17.59878581455° = 17°35'52″ = 0.30771405659 rad
Angle ∠ B = β = 35.25326937328° = 35°15'10″ = 0.61552755758 rad
Angle ∠ C = γ = 127.1499448122° = 127°8'58″ = 2.21991765118 rad

Height: ha = 16.73883239186
Height: hb = 8.76876934812
Height: hc = 6.34990194174

Median: ma = 24.71333567125
Median: mb = 19.2554869514
Median: mc = 8.41113019206

Inradius: r = 3.01883862804
Circumradius: R = 18.19217855982

Vertex coordinates: A[29; 0] B[0; 0] C[8.98327586207; 6.34990194174]
Centroid: CG[12.66109195402; 2.11663398058]
Coordinates of the circumscribed circle: U[14.5; -10.98659484457]
Coordinates of the inscribed circle: I[9.5; 3.01883862804]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 162.4022141855° = 162°24'8″ = 0.30771405659 rad
∠ B' = β' = 144.7477306267° = 144°44'50″ = 0.61552755758 rad
∠ C' = γ' = 52.85105518783° = 52°51'2″ = 2.21991765118 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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