# 5 26 29 triangle

### Obtuse scalene triangle.

Sides: a = 5   b = 26   c = 29

Area: T = 54.77222557505
Perimeter: p = 60
Semiperimeter: s = 30

Angle ∠ A = α = 8.35437541814° = 8°21'14″ = 0.14658005154 rad
Angle ∠ B = β = 49.06772754258° = 49°4'2″ = 0.85663855112 rad
Angle ∠ C = γ = 122.5798970393° = 122°34'44″ = 2.13994066271 rad

Height: ha = 21.90989023002
Height: hb = 4.21332504423
Height: hc = 3.77773969483

Median: ma = 27.42771763038
Median: mb = 16.24880768093
Median: mc = 11.84327192823

Inradius: r = 1.82657418584
Circumradius: R = 17.2087617015

Vertex coordinates: A[29; 0] B[0; 0] C[3.2765862069; 3.77773969483]
Centroid: CG[10.75986206897; 1.25991323161]
Coordinates of the circumscribed circle: U[14.5; -9.26656399311]
Coordinates of the inscribed circle: I[4; 1.82657418584]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 171.6466245819° = 171°38'47″ = 0.14658005154 rad
∠ B' = β' = 130.9332724574° = 130°55'58″ = 0.85663855112 rad
∠ C' = γ' = 57.42110296072° = 57°25'16″ = 2.13994066271 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.