Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 7.62   b = 1.41   c = 6.32

Area: T = 1.89330004713
Perimeter: p = 15.35
Semiperimeter: s = 7.675

Angle ∠ A = α = 154.8588279412° = 154°51'30″ = 2.70327868497 rad
Angle ∠ B = β = 4.50989941394° = 4°30'32″ = 0.07986967937 rad
Angle ∠ C = γ = 20.63327264489° = 20°37'58″ = 0.36601090102 rad

Height: ha = 0.49768505174
Height: hb = 2.68551070515
Height: hc = 0.59990507821

Median: ma = 2.54395176707
Median: mb = 6.96546518219
Median: mc = 4.47766784562

Inradius: r = 0.24766450125
Circumradius: R = 8.96876871492

Vertex coordinates: A[6.32; 0] B[0; 0] C[7.59664161392; 0.59990507821]
Centroid: CG[4.63988053797; 0.2199683594]
Coordinates of the circumscribed circle: U[3.16; 8.39224854963]
Coordinates of the inscribed circle: I[6.265; 0.24766450125]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 25.14217205882° = 25°8'30″ = 2.70327868497 rad
∠ B' = β' = 175.4911005861° = 175°29'28″ = 0.07986967937 rad
∠ C' = γ' = 159.3677273551° = 159°22'2″ = 0.36601090102 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     