# 4 11 14 triangle

### Obtuse scalene triangle.

Sides: a = 4   b = 11   c = 14

Area: T = 16.32329133429
Perimeter: p = 29
Semiperimeter: s = 14.5

Angle ∠ A = α = 12.23987557679° = 12°14'20″ = 0.21436065845 rad
Angle ∠ B = β = 35.65990876961° = 35°39'33″ = 0.62223684886 rad
Angle ∠ C = γ = 132.1022156536° = 132°6'8″ = 2.30656175805 rad

Height: ha = 8.16114566715
Height: hb = 2.9687802426
Height: hc = 2.33218447633

Median: ma = 12.43298028947
Median: mb = 8.70334475928
Median: mc = 4.41658804332

Inradius: r = 1.12657181616
Circumradius: R = 9.43545903066

Vertex coordinates: A[14; 0] B[0; 0] C[3.25; 2.33218447633]
Centroid: CG[5.75; 0.77772815878]
Coordinates of the circumscribed circle: U[7; -6.32554639555]
Coordinates of the inscribed circle: I[3.5; 1.12657181616]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 167.7611244232° = 167°45'40″ = 0.21436065845 rad
∠ B' = β' = 144.3410912304° = 144°20'27″ = 0.62223684886 rad
∠ C' = γ' = 47.89878434641° = 47°53'52″ = 2.30656175805 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.