# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 8.92   b = 7.83   c = 2.01

Area: T = 7.02106921169
Perimeter: p = 18.76
Semiperimeter: s = 9.38

Angle ∠ A = α = 116.8521622806° = 116°51'6″ = 2.03994455543 rad
Angle ∠ B = β = 51.55105726909° = 51°33'2″ = 0.98997272247 rad
Angle ∠ C = γ = 11.59878045032° = 11°35'52″ = 0.20224198746 rad

Height: ha = 1.57441462145
Height: hb = 1.79332802342
Height: hc = 6.98657633004

Median: ma = 3.57553181677
Median: mb = 5.14554858857
Median: mc = 8.33223241056

Inradius: r = 0.74884746393
Circumradius: R = 4.99989955998

Vertex coordinates: A[2.01; 0] B[0; 0] C[5.54766666667; 6.98657633004]
Centroid: CG[2.51988888889; 2.32985877668]
Coordinates of the circumscribed circle: U[1.005; 4.89769308763]
Coordinates of the inscribed circle: I[1.55; 0.74884746393]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 63.14883771942° = 63°8'54″ = 2.03994455543 rad
∠ B' = β' = 128.4499427309° = 128°26'58″ = 0.98997272247 rad
∠ C' = γ' = 168.4022195497° = 168°24'8″ = 0.20224198746 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    