# 10 25 29 triangle

### Obtuse scalene triangle.

Sides: a = 10   b = 25   c = 29

Area: T = 121.5899473229
Perimeter: p = 64
Semiperimeter: s = 32

Angle ∠ A = α = 19.59880335086° = 19°35'53″ = 0.34220502116 rad
Angle ∠ B = β = 56.98771177352° = 56°59'14″ = 0.99546128357 rad
Angle ∠ C = γ = 103.4154848756° = 103°24'53″ = 1.80549296062 rad

Height: ha = 24.31878946457
Height: hb = 9.72771578583
Height: hc = 8.38554809123

Median: ma = 26.60882693913
Median: mb = 17.72770979012
Median: mc = 12.33989626793

Inradius: r = 3.87996710384
Circumradius: R = 14.90767180889

Vertex coordinates: A[29; 0] B[0; 0] C[5.44882758621; 8.38554809123]
Centroid: CG[11.48327586207; 2.79551603041]
Coordinates of the circumscribed circle: U[14.5; -3.45883585966]
Coordinates of the inscribed circle: I[7; 3.87996710384]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 160.4021966491° = 160°24'7″ = 0.34220502116 rad
∠ B' = β' = 123.0132882265° = 123°46″ = 0.99546128357 rad
∠ C' = γ' = 76.58551512438° = 76°35'7″ = 1.80549296062 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.