Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 7.07   b = 15.81   c = 14.14

Area: T = 49.98548993757
Perimeter: p = 37.02
Semiperimeter: s = 18.51

Angle ∠ A = α = 26.56332399118° = 26°33'48″ = 0.46436159965 rad
Angle ∠ B = β = 90.0099055468° = 90°33″ = 1.57109543745 rad
Angle ∠ C = γ = 63.42877046203° = 63°25'40″ = 1.10770222826 rad

Height: ha = 14.14399998234
Height: hb = 6.3233200427
Height: hc = 7.07699999117

Median: ma = 14.57657203939
Median: mb = 7.90440005693
Median: mc = 9.99992799741

Inradius: r = 2.77004267626
Circumradius: R = 7.90550000987

Vertex coordinates: A[14.14; 0] B[0; 0] C[-0.00111173975; 7.07699999117]
Centroid: CG[4.71329608675; 2.35766666372]
Coordinates of the circumscribed circle: U[7.07; 3.53661174416]
Coordinates of the inscribed circle: I[2.7; 2.77004267626]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 153.4376760088° = 153°26'12″ = 0.46436159965 rad
∠ B' = β' = 89.9910944532° = 89°59'27″ = 1.57109543745 rad
∠ C' = γ' = 116.572229538° = 116°34'20″ = 1.10770222826 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     