8.49 21.1 27.29 triangle

Obtuse scalene triangle.

Sides: a = 8.49   b = 21.1   c = 27.29

Area: T = 69.20443184924
Perimeter: p = 56.88
Semiperimeter: s = 28.44

Angle ∠ A = α = 13.90882790303° = 13°54'30″ = 0.24327452624 rad
Angle ∠ B = β = 36.68326100365° = 36°40'57″ = 0.64402323234 rad
Angle ∠ C = γ = 129.4099110933° = 129°24'33″ = 2.25986150679 rad

Height: ha = 16.30325485259
Height: hb = 6.56596510419
Height: hc = 5.07217712343

Median: ma = 24.02199297459
Median: mb = 17.23768674648
Median: mc = 8.5122286708

Inradius: r = 2.43333445321
Circumradius: R = 17.66603982833

Vertex coordinates: A[27.29; 0] B[0; 0] C[6.80986148772; 5.07217712343]
Centroid: CG[11.36662049591; 1.69105904114]
Coordinates of the circumscribed circle: U[13.645; -11.21217635778]
Coordinates of the inscribed circle: I[7.34; 2.43333445321]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 166.092172097° = 166°5'30″ = 0.24327452624 rad
∠ B' = β' = 143.3177389963° = 143°19'3″ = 0.64402323234 rad
∠ C' = γ' = 50.59108890668° = 50°35'27″ = 2.25986150679 rad

How did we calculate this triangle?

1. The triangle circumference is the sum of the lengths of its three sides 2. Semiperimeter of the triangle 3. The triangle area using Heron's formula 4. Calculate the heights of the triangle from its area. 5. Calculation of the inner angles of the triangle using a Law of Cosines     