10 18 23 triangle

Obtuse scalene triangle.

Sides: a = 10   b = 18   c = 23

Area: T = 86.08768021244
Perimeter: p = 51
Semiperimeter: s = 25.5

Angle ∠ A = α = 24.57546375825° = 24°34'29″ = 0.42989083383 rad
Angle ∠ B = β = 48.46875991175° = 48°28'3″ = 0.84659191851 rad
Angle ∠ C = γ = 106.95877633° = 106°57'28″ = 1.86767651302 rad

Height: ha = 17.21773604249
Height: hb = 9.5655200236
Height: hc = 7.48658088804

Median: ma = 20.03774649095
Median: mb = 15.28107067899
Median: mc = 8.93302855497

Inradius: r = 3.37659530245
Circumradius: R = 12.02327488356

Vertex coordinates: A[23; 0] B[0; 0] C[6.63304347826; 7.48658088804]
Centroid: CG[9.87768115942; 2.49552696268]
Coordinates of the circumscribed circle: U[11.5; -3.5076635077]
Coordinates of the inscribed circle: I[7.5; 3.37659530245]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 155.4255362417° = 155°25'31″ = 0.42989083383 rad
∠ B' = β' = 131.5322400883° = 131°31'57″ = 0.84659191851 rad
∠ C' = γ' = 73.04222367° = 73°2'32″ = 1.86767651302 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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