# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 2.75   b = 1.32   c = 1.83

Area: T = 1.03878362106
Perimeter: p = 5.9
Semiperimeter: s = 2.95

Angle ∠ A = α = 120.7644364366° = 120°45'52″ = 2.10877357773 rad
Angle ∠ B = β = 24.35990555799° = 24°21'33″ = 0.42551457225 rad
Angle ∠ C = γ = 34.87765800543° = 34°52'36″ = 0.60987111538 rad

Height: ha = 0.75547899713
Height: hb = 1.57224791069
Height: hc = 1.13442472247

Median: ma = 0.80993361477
Median: mb = 2.24105579662
Median: mc = 1.95332600953

Inradius: r = 0.35218088849
Circumradius: R = 1.66001802433

Vertex coordinates: A[1.83; 0] B[0; 0] C[2.50551912568; 1.13442472247]
Centroid: CG[1.44550637523; 0.37880824082]
Coordinates of the circumscribed circle: U[0.915; 1.31327649489]
Coordinates of the inscribed circle: I[1.63; 0.35218088849]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 59.23656356342° = 59°14'8″ = 2.10877357773 rad
∠ B' = β' = 155.641094442° = 155°38'27″ = 0.42551457225 rad
∠ C' = γ' = 145.1233419946° = 145°7'24″ = 0.60987111538 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.