# 6 12 14 triangle

### Obtuse scalene triangle.

Sides: a = 6   b = 12   c = 14

Area: T = 35.777708764
Perimeter: p = 32
Semiperimeter: s = 16

Angle ∠ A = α = 25.20987652968° = 25°12'32″ = 0.44399759548 rad
Angle ∠ B = β = 58.41218644948° = 58°24'43″ = 1.01994793577 rad
Angle ∠ C = γ = 96.37993702084° = 96°22'46″ = 1.68221373411 rad

Height: ha = 11.926569588
Height: hb = 5.963284794
Height: hc = 5.111101252

Median: ma = 12.68985775404
Median: mb = 8.944427191
Median: mc = 6.40331242374

Inradius: r = 2.23660679775
Circumradius: R = 7.04436141291

Vertex coordinates: A[14; 0] B[0; 0] C[3.14328571429; 5.111101252]
Centroid: CG[5.71442857143; 1.704367084]
Coordinates of the circumscribed circle: U[7; -0.78326237921]
Coordinates of the inscribed circle: I[4; 2.23660679775]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.7911234703° = 154°47'28″ = 0.44399759548 rad
∠ B' = β' = 121.5888135505° = 121°35'17″ = 1.01994793577 rad
∠ C' = γ' = 83.62106297916° = 83°37'14″ = 1.68221373411 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.