Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 49.99   b = 111.8   c = 99.99

Area: T = 2499.254998727
Perimeter: p = 261.78
Semiperimeter: s = 130.89

Angle ∠ A = α = 26.56601917446° = 26°33'37″ = 0.46435627959 rad
Angle ∠ B = β = 90.01328369596° = 90°46″ = 1.5711020374 rad
Angle ∠ C = γ = 63.42769712957° = 63°25'37″ = 1.10770094837 rad

Height: ha = 99.99899974904
Height: hb = 44.70993020979
Height: hc = 49.99899987453

Median: ma = 103.0722159311
Median: mb = 55.89899821077
Median: mc = 70.70879912386

Inradius: r = 19.09442775405
Circumradius: R = 55.9900001403

Vertex coordinates: A[99.99; 0] B[0; 0] C[-0.011120012; 49.99899987453]
Centroid: CG[33.32662666267; 16.66333329151]
Coordinates of the circumscribed circle: U[49.995; 25.00662018679]
Coordinates of the inscribed circle: I[19.09; 19.09442775405]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 153.4439808255° = 153°26'23″ = 0.46435627959 rad
∠ B' = β' = 89.98771630404° = 89°59'14″ = 1.5711020374 rad
∠ C' = γ' = 116.5733028704° = 116°34'23″ = 1.10770094837 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     