15 17 30 triangle

Obtuse scalene triangle.

Sides: a = 15   b = 17   c = 30

Area: T = 83.3310666624
Perimeter: p = 62
Semiperimeter: s = 31

Angle ∠ A = α = 19.07438706794° = 19°4'26″ = 0.33329018445 rad
Angle ∠ B = β = 21.73877297313° = 21°44'16″ = 0.37993949557 rad
Angle ∠ C = γ = 139.1888399589° = 139°11'18″ = 2.42992958534 rad

Height: ha = 11.11107555499
Height: hb = 9.80436078381
Height: hc = 5.55553777749

Median: ma = 23.22002155162
Median: mb = 22.14215898255
Median: mc = 5.65768542495

Inradius: r = 2.68880860201
Circumradius: R = 22.95107344353

Vertex coordinates: A[30; 0] B[0; 0] C[13.93333333333; 5.55553777749]
Centroid: CG[14.64444444444; 1.85217925916]
Coordinates of the circumscribed circle: U[15; -17.37105558667]
Coordinates of the inscribed circle: I[14; 2.68880860201]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 160.9266129321° = 160°55'34″ = 0.33329018445 rad
∠ B' = β' = 158.2622270269° = 158°15'44″ = 0.37993949557 rad
∠ C' = γ' = 40.81216004107° = 40°48'42″ = 2.42992958534 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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