# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 5   b = 22   c = 23

Area: T = 54.77222557505
Perimeter: p = 50
Semiperimeter: s = 25

Angle ∠ A = α = 12.5033023303° = 12°30'11″ = 0.21882189231 rad
Angle ∠ B = β = 72.28110681266° = 72°16'52″ = 1.26215426257 rad
Angle ∠ C = γ = 95.21659085705° = 95°12'57″ = 1.66218311048 rad

Height: ha = 21.90989023002
Height: hb = 4.97992959773
Height: hc = 4.76328048479

Median: ma = 22.36662692463
Median: mb = 12.49899959968
Median: mc = 11.05766721937

Inradius: r = 2.191089023
Circumradius: R = 11.54878172541

Vertex coordinates: A[23; 0] B[0; 0] C[1.52217391304; 4.76328048479]
Centroid: CG[8.17439130435; 1.5887601616]
Coordinates of the circumscribed circle: U[11.5; -1.05498015686]
Coordinates of the inscribed circle: I[3; 2.191089023]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 167.4976976697° = 167°29'49″ = 0.21882189231 rad
∠ B' = β' = 107.7198931873° = 107°43'8″ = 1.26215426257 rad
∠ C' = γ' = 84.78440914295° = 84°47'3″ = 1.66218311048 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    