# 6 25 29 triangle

### Obtuse scalene triangle.

Sides: a = 6   b = 25   c = 29

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

Angle ∠ A = α = 9.52772833815° = 9°31'38″ = 0.16662824638 rad
Angle ∠ B = β = 43.60328189727° = 43°36'10″ = 0.76110127542 rad
Angle ∠ C = γ = 126.8769897646° = 126°52'12″ = 2.21442974356 rad

Height: ha = 20
Height: hb = 4.8
Height: hc = 4.13879310345

Median: ma = 26.90772480941
Median: mb = 16.88002976164
Median: mc = 10.96658560997

Inradius: r = 2
Circumradius: R = 18.125

Vertex coordinates: A[29; 0] B[0; 0] C[4.34548275862; 4.13879310345]
Centroid: CG[11.11549425287; 1.37993103448]
Coordinates of the circumscribed circle: U[14.5; -10.875]
Coordinates of the inscribed circle: I[5; 2]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 170.4732716619° = 170°28'22″ = 0.16662824638 rad
∠ B' = β' = 136.3977181027° = 136°23'50″ = 0.76110127542 rad
∠ C' = γ' = 53.13301023542° = 53°7'48″ = 2.21442974356 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.