Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 24.19   b = 25.5   c = 8.06

Area: T = 97.48656945575
Perimeter: p = 57.75
Semiperimeter: s = 28.875

Angle ∠ A = α = 71.5554925605° = 71°33'18″ = 1.24988690478 rad
Angle ∠ B = β = 90.01991454752° = 90°1'9″ = 1.57111304784 rad
Angle ∠ C = γ = 18.42659289198° = 18°25'33″ = 0.32215931274 rad

Height: ha = 8.065999955
Height: hb = 7.6465936828
Height: hc = 24.19899986495

Median: ma = 14.53767731977
Median: mb = 12.7477444842
Median: mc = 24.52547252788

Inradius: r = 3.376612795
Circumradius: R = 12.75500007118

Vertex coordinates: A[8.06; 0] B[0; 0] C[-0.00880831266; 24.19899986495]
Centroid: CG[2.68439722911; 8.06333328832]
Coordinates of the circumscribed circle: U[4.03; 12.09663473062]
Coordinates of the inscribed circle: I[3.375; 3.376612795]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 108.4455074395° = 108°26'42″ = 1.24988690478 rad
∠ B' = β' = 89.98108545248° = 89°58'51″ = 1.57111304784 rad
∠ C' = γ' = 161.574407108° = 161°34'27″ = 0.32215931274 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     