# 6 19 22 triangle

### Obtuse scalene triangle.

Sides: a = 6   b = 19   c = 22

Area: T = 52.68771663691
Perimeter: p = 47
Semiperimeter: s = 23.5

Angle ∠ A = α = 14.60113231096° = 14°36'5″ = 0.25548411634 rad
Angle ∠ B = β = 52.9677156255° = 52°58'2″ = 0.92444512721 rad
Angle ∠ C = γ = 112.4321520635° = 112°25'53″ = 1.96223002181 rad

Height: ha = 17.56223887897
Height: hb = 5.54660175125
Height: hc = 4.79897423972

Median: ma = 20.33546994077
Median: mb = 13.02988142208
Median: mc = 8.80334084308

Inradius: r = 2.24220070795
Circumradius: R = 11.99004312285

Vertex coordinates: A[22; 0] B[0; 0] C[3.61436363636; 4.79897423972]
Centroid: CG[8.53878787879; 1.59765807991]
Coordinates of the circumscribed circle: U[11; -4.54109540214]
Coordinates of the inscribed circle: I[4.5; 2.24220070795]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 165.399867689° = 165°23'55″ = 0.25548411634 rad
∠ B' = β' = 127.0332843745° = 127°1'58″ = 0.92444512721 rad
∠ C' = γ' = 67.56884793646° = 67°34'7″ = 1.96223002181 rad

# How did we calculate this triangle?

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. ### 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.