7 23 26 triangle

Obtuse scalene triangle.

Sides: a = 7   b = 23   c = 26

Area: T = 76.68111580507
Perimeter: p = 56
Semiperimeter: s = 28

Angle ∠ A = α = 14.86600385194° = 14°51'36″ = 0.25993565991 rad
Angle ∠ B = β = 57.42110296072° = 57°25'16″ = 1.00221860265 rad
Angle ∠ C = γ = 107.7198931873° = 107°43'8″ = 1.88800500279 rad

Height: ha = 21.90989023002
Height: hb = 6.6687926787
Height: hc = 5.89985506193

Median: ma = 24.29550612265
Median: mb = 15.17439909055
Median: mc = 10.95444511501

Inradius: r = 2.73986127875
Circumradius: R = 13.64774203912

Vertex coordinates: A[26; 0] B[0; 0] C[3.76992307692; 5.89985506193]
Centroid: CG[9.92330769231; 1.96661835398]
Coordinates of the circumscribed circle: U[13; -4.15435627277]
Coordinates of the inscribed circle: I[5; 2.73986127875]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 165.1439961481° = 165°8'24″ = 0.25993565991 rad
∠ B' = β' = 122.5798970393° = 122°34'44″ = 1.00221860265 rad
∠ C' = γ' = 72.28110681266° = 72°16'52″ = 1.88800500279 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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