7 12 17 triangle

Obtuse scalene triangle.

Sides: a = 7   b = 12   c = 17

Area: T = 34.46773758792
Perimeter: p = 36
Semiperimeter: s = 18

Angle ∠ A = α = 19.75499227956° = 19°45' = 0.34547011798 rad
Angle ∠ B = β = 35.44001726253° = 35°24'1″ = 0.61878495681 rad
Angle ∠ C = γ = 124.8549904579° = 124°51' = 2.17990419057 rad

Height: ha = 9.84878216798
Height: hb = 5.74545626465
Height: hc = 4.05549853976

Median: ma = 14.2921605928
Median: mb = 11.53325625947
Median: mc = 4.92444289009

Inradius: r = 1.91548542155
Circumradius: R = 10.35876205294

Vertex coordinates: A[17; 0] B[0; 0] C[5.70658823529; 4.05549853976]
Centroid: CG[7.5698627451; 1.35216617992]
Coordinates of the circumscribed circle: U[8.5; -5.91986403025]
Coordinates of the inscribed circle: I[6; 1.91548542155]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 160.2550077204° = 160°15' = 0.34547011798 rad
∠ B' = β' = 144.6599827375° = 144°35'59″ = 0.61878495681 rad
∠ C' = γ' = 55.1550095421° = 55°9' = 2.17990419057 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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