# 5 25 29 triangle

### Obtuse scalene triangle.

Sides: a = 5   b = 25   c = 29

Area: T = 40.32660151763
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 6.38770420437° = 6°23'13″ = 0.11114749131 rad
Angle ∠ B = β = 33.79548485051° = 33°47'41″ = 0.59898313766 rad
Angle ∠ C = γ = 139.8188109451° = 139°49'5″ = 2.44402863638 rad

Height: ha = 16.13304060705
Height: hb = 3.22660812141
Height: hc = 2.78111044949

Median: ma = 26.95883011334
Median: mb = 16.63658047596
Median: mc = 10.71221426428

Inradius: r = 1.36769835653
Circumradius: R = 22.47330858241

Vertex coordinates: A[29; 0] B[0; 0] C[4.15551724138; 2.78111044949]
Centroid: CG[11.05217241379; 0.92770348316]
Coordinates of the circumscribed circle: U[14.5; -17.16994375696]
Coordinates of the inscribed circle: I[4.5; 1.36769835653]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 173.6132957956° = 173°36'47″ = 0.11114749131 rad
∠ B' = β' = 146.2055151495° = 146°12'19″ = 0.59898313766 rad
∠ C' = γ' = 40.18218905488° = 40°10'55″ = 2.44402863638 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.