# 6 14 17 triangle

### Obtuse scalene triangle.

Sides: a = 6   b = 14   c = 17

Area: T = 39.50987015732
Perimeter: p = 37
Semiperimeter: s = 18.5

Angle ∠ A = α = 19.39105704897° = 19°23'26″ = 0.33884292989 rad
Angle ∠ B = β = 50.77660676014° = 50°46'34″ = 0.88662095609 rad
Angle ∠ C = γ = 109.8333361909° = 109°50' = 1.91769537938 rad

Height: ha = 13.17695671911
Height: hb = 5.64441002247
Height: hc = 4.6488082538

Median: ma = 15.28107067899
Median: mb = 10.65436378763
Median: mc = 6.61443782777

Inradius: r = 2.13656054904
Circumradius: R = 9.03659841196

Vertex coordinates: A[17; 0] B[0; 0] C[3.79441176471; 4.6488082538]
Centroid: CG[6.9311372549; 1.5499360846]
Coordinates of the circumscribed circle: U[8.5; -3.06657803263]
Coordinates of the inscribed circle: I[4.5; 2.13656054904]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 160.609942951° = 160°36'34″ = 0.33884292989 rad
∠ B' = β' = 129.2243932399° = 129°13'26″ = 0.88662095609 rad
∠ C' = γ' = 70.16766380911° = 70°10' = 1.91769537938 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.