# Triangle calculator SAS

Please enter two sides of the triangle and the included angle
°

### Obtuse scalene triangle.

Sides: a = 0.445   b = 90   c = 89.55550333755

Area: T = 0.24546454416
Perimeter: p = 1800.000033376
Semiperimeter: s = 900.0000166878

Angle ∠ A = α = 0.00334782217° = 0°13″ = 06.07064E-5 rad
Angle ∠ B = β = 179.2976521778° = 179°17'47″ = 3.12993146424 rad
Angle ∠ C = γ = 0.7° = 0°42' = 0.01222173048 rad

Height: ha = 1.10995300748
Height: hb = 0.00554365654
Height: hc = 0.00554635777

Median: ma = 89.77875166464
Median: mb = 44.55550335422
Median: mc = 45.22224834764

Inradius: r = 0.00327182822
Circumradius: R = 3665.181072209

Vertex coordinates: A[89.55550333755; 0] B[0; 0] C[-0.44549664586; 0.00554635777]
Centroid: CG[29.7033355639; 0.00218211926]
Coordinates of the circumscribed circle: U[44.77875166878; 3664.907724939]
Coordinates of the inscribed circle: I[01.66878E-5; 0.00327182822]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 179.9976521778° = 179°59'47″ = 06.07064E-5 rad
∠ B' = β' = 0.70334782216° = 0°42'13″ = 3.12993146424 rad
∠ C' = γ' = 179.3° = 179°18' = 0.01222173048 rad

# How did we calculate this triangle?

### 1. Calculation of the third side c of the triangle using a Law of Cosines Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS. ### 2. The triangle circumference is the sum of the lengths of its three sides ### 3. Semiperimeter of the triangle ### 4. The triangle area using Heron's formula ### 5. Calculate the heights of the triangle from its area. ### 6. Calculation of the inner angles of the triangle using a Law of Cosines    