# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 19   b = 21   c = 22

Area: T = 182.9755408184
Perimeter: p = 62
Semiperimeter: s = 31

Angle ∠ A = α = 52.38223203336° = 52°22'56″ = 0.91442439597 rad
Angle ∠ B = β = 61.10218844875° = 61°6'7″ = 1.06664290635 rad
Angle ∠ C = γ = 66.51657951789° = 66°30'57″ = 1.16109196305 rad

Height: ha = 19.26105692825
Height: hb = 17.42662293508
Height: hc = 16.63441280167

Median: ma = 19.29437813816
Median: mb = 17.67105970471
Median: mc = 16.73332005307

Inradius: r = 5.90224325221
Circumradius: R = 11.99334149719

Vertex coordinates: A[22; 0] B[0; 0] C[9.18218181818; 16.63441280167]
Centroid: CG[10.39439393939; 5.54547093389]
Coordinates of the circumscribed circle: U[11; 4.77993307783]
Coordinates of the inscribed circle: I[10; 5.90224325221]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 127.6187679666° = 127°37'4″ = 0.91442439597 rad
∠ B' = β' = 118.8988115512° = 118°53'53″ = 1.06664290635 rad
∠ C' = γ' = 113.4844204821° = 113°29'3″ = 1.16109196305 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.