# 8 23 29 triangle

### Obtuse scalene triangle.

Sides: a = 8   b = 23   c = 29

Area: T = 67.97105818719
Perimeter: p = 60
Semiperimeter: s = 30

Angle ∠ A = α = 11.76598371264° = 11°45'35″ = 0.20552478774 rad
Angle ∠ B = β = 35.87703643042° = 35°52'13″ = 0.6266055961 rad
Angle ∠ C = γ = 132.3769798569° = 132°22'11″ = 2.31102888152 rad

Height: ha = 16.9932645468
Height: hb = 5.91104853802
Height: hc = 4.6887626336

Median: ma = 25.86550343128
Median: mb = 17.89655301682
Median: mc = 9.28770878105

Inradius: r = 2.26656860624
Circumradius: R = 19.62661377093

Vertex coordinates: A[29; 0] B[0; 0] C[6.48327586207; 4.6887626336]
Centroid: CG[11.82875862069; 1.5632542112]
Coordinates of the circumscribed circle: U[14.5; -13.22663101954]
Coordinates of the inscribed circle: I[7; 2.26656860624]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 168.2440162874° = 168°14'25″ = 0.20552478774 rad
∠ B' = β' = 144.1329635696° = 144°7'47″ = 0.6266055961 rad
∠ C' = γ' = 47.63302014306° = 47°37'49″ = 2.31102888152 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.