8 23 28 triangle

Obtuse scalene triangle.

Sides: a = 8   b = 23   c = 28

Area: T = 78.63880156159
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 14.13655915806° = 14°8'8″ = 0.24767126148 rad
Angle ∠ B = β = 44.59877538761° = 44°35'52″ = 0.77883776441 rad
Angle ∠ C = γ = 121.2676654543° = 121°16' = 2.11765023947 rad

Height: ha = 19.6659503904
Height: hb = 6.83880883144
Height: hc = 5.61770011154

Median: ma = 25.30881014697
Median: mb = 17.08106908525
Median: mc = 10.02549688279

Inradius: r = 2.66656954446
Circumradius: R = 16.37988466674

Vertex coordinates: A[28; 0] B[0; 0] C[5.69664285714; 5.61770011154]
Centroid: CG[11.23221428571; 1.87223337051]
Coordinates of the circumscribed circle: U[14; -8.50109774823]
Coordinates of the inscribed circle: I[6.5; 2.66656954446]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 165.8644408419° = 165°51'52″ = 0.24767126148 rad
∠ B' = β' = 135.4022246124° = 135°24'8″ = 0.77883776441 rad
∠ C' = γ' = 58.73333454567° = 58°44' = 2.11765023947 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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