# 14 16 26 triangle

### Obtuse scalene triangle.

Sides: a = 14   b = 16   c = 26

Area: T = 96.99548452239
Perimeter: p = 56
Semiperimeter: s = 28

Angle ∠ A = α = 27.7965772496° = 27°47'45″ = 0.48551277482 rad
Angle ∠ B = β = 32.2044227504° = 32°12'15″ = 0.5622069803 rad
Angle ∠ C = γ = 120° = 2.09443951024 rad

Height: ha = 13.85664064606
Height: hb = 12.1244355653
Height: hc = 7.46111419403

Median: ma = 20.42105778567
Median: mb = 19.2877301522
Median: mc = 7.55498344353

Inradius: r = 3.46441016151
Circumradius: R = 15.01111069989

Vertex coordinates: A[26; 0] B[0; 0] C[11.84661538462; 7.46111419403]
Centroid: CG[12.61553846154; 2.48770473134]
Coordinates of the circumscribed circle: U[13; -7.50655534995]
Coordinates of the inscribed circle: I[12; 3.46441016151]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152.2044227504° = 152°12'15″ = 0.48551277482 rad
∠ B' = β' = 147.7965772496° = 147°47'45″ = 0.5622069803 rad
∠ C' = γ' = 60° = 2.09443951024 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.