Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 6.01   b = 2.5   c = 8.04

Area: T = 5.04334536019
Perimeter: p = 16.55
Semiperimeter: s = 8.275

Angle ∠ A = α = 30.122155518° = 30°7'18″ = 0.52657203137 rad
Angle ∠ B = β = 12.04991378514° = 12°2'57″ = 0.21102971275 rad
Angle ∠ C = γ = 137.8299306969° = 137°49'46″ = 2.40655752123 rad

Height: ha = 1.67883539441
Height: hb = 4.03547628815
Height: hc = 1.25545904482

Median: ma = 5.14396279048
Median: mb = 6.98770129526
Median: mc = 2.24215731083

Inradius: r = 0.60994807978
Circumradius: R = 5.98880098805

Vertex coordinates: A[8.04; 0] B[0; 0] C[5.87875932836; 1.25545904482]
Centroid: CG[4.63991977612; 0.41881968161]
Coordinates of the circumscribed circle: U[4.02; -4.4388002065]
Coordinates of the inscribed circle: I[5.775; 0.60994807978]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 149.878844482° = 149°52'42″ = 0.52657203137 rad
∠ B' = β' = 167.9510862149° = 167°57'3″ = 0.21102971275 rad
∠ C' = γ' = 42.17106930314° = 42°10'14″ = 2.40655752123 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     