15 22 30 triangle

Obtuse scalene triangle.

Sides: a = 15   b = 22   c = 30

Area: T = 157.9439664113
Perimeter: p = 67
Semiperimeter: s = 33.5

Angle ∠ A = α = 28.59443347318° = 28°35'40″ = 0.49990652885 rad
Angle ∠ B = β = 44.58439897257° = 44°35'2″ = 0.77881374144 rad
Angle ∠ C = γ = 106.8221675543° = 106°49'18″ = 1.86443899507 rad

Height: ha = 21.05986218817
Height: hb = 14.3588151283
Height: hc = 10.52993109408

Median: ma = 25.21440833662
Median: mb = 21.01219013895
Median: mc = 11.38798066767

Inradius: r = 4.71546168392
Circumradius: R = 15.6710541114

Vertex coordinates: A[30; 0] B[0; 0] C[10.68333333333; 10.52993109408]
Centroid: CG[13.56111111111; 3.51097703136]
Coordinates of the circumscribed circle: U[15; -4.53549596254]
Coordinates of the inscribed circle: I[11.5; 4.71546168392]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 151.4065665268° = 151°24'20″ = 0.49990652885 rad
∠ B' = β' = 135.4166010274° = 135°24'58″ = 0.77881374144 rad
∠ C' = γ' = 73.17883244575° = 73°10'42″ = 1.86443899507 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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