15 16 30 triangle

Obtuse scalene triangle.

Sides: a = 15   b = 16   c = 30

Area: T = 58.54443208177
Perimeter: p = 61
Semiperimeter: s = 30.5

Angle ∠ A = α = 14.11988847899° = 14°7'8″ = 0.24664210263 rad
Angle ∠ B = β = 15.08217506421° = 15°4'54″ = 0.26332262057 rad
Angle ∠ C = γ = 150.7999364568° = 150°47'58″ = 2.63219454216 rad

Height: ha = 7.80659094424
Height: hb = 7.31880401022
Height: hc = 3.90329547212

Median: ma = 22.8421847561
Median: mb = 22.32771135618
Median: mc = 3.9377003937

Inradius: r = 1.91994859284
Circumradius: R = 30.74659370074

Vertex coordinates: A[30; 0] B[0; 0] C[14.48333333333; 3.90329547212]
Centroid: CG[14.82877777778; 1.30109849071]
Coordinates of the circumscribed circle: U[15; -26.8398640846]
Coordinates of the inscribed circle: I[14.5; 1.91994859284]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 165.881111521° = 165°52'52″ = 0.24664210263 rad
∠ B' = β' = 164.9188249358° = 164°55'6″ = 0.26332262057 rad
∠ C' = γ' = 29.2010635432° = 29°12'2″ = 2.63219454216 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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