15 25 26 triangle

Acute scalene triangle.

Sides: a = 15   b = 25   c = 26

Area: T = 182.3844209843
Perimeter: p = 66
Semiperimeter: s = 33

Angle ∠ A = α = 34.13875931378° = 34°8'15″ = 0.5965813399 rad
Angle ∠ B = β = 69.27772556184° = 69°16'38″ = 1.20991162073 rad
Angle ∠ C = γ = 76.58551512438° = 76°35'7″ = 1.33766630473 rad

Height: ha = 24.31878946457
Height: hb = 14.59107367874
Height: hc = 14.03295546033

Median: ma = 24.37772434865
Median: mb = 17.15437167984
Median: mc = 16

Inradius: r = 5.52767942377
Circumradius: R = 13.36546438039

Vertex coordinates: A[26; 0] B[0; 0] C[5.30876923077; 14.03295546033]
Centroid: CG[10.43658974359; 4.67765182011]
Coordinates of the circumscribed circle: U[13; 3.10105973625]
Coordinates of the inscribed circle: I[8; 5.52767942377]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.8622406862° = 145°51'45″ = 0.5965813399 rad
∠ B' = β' = 110.7232744382° = 110°43'22″ = 1.20991162073 rad
∠ C' = γ' = 103.4154848756° = 103°24'53″ = 1.33766630473 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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