# 8 24 26 triangle

### Obtuse scalene triangle.

Sides: a = 8   b = 24   c = 26

Area: T = 95.57771939324
Perimeter: p = 58
Semiperimeter: s = 29

Angle ∠ A = α = 17.83986287523° = 17°50'19″ = 0.31113428058 rad
Angle ∠ B = β = 66.78219922566° = 66°46'55″ = 1.16655656459 rad
Angle ∠ C = γ = 95.37993789911° = 95°22'46″ = 1.66546842019 rad

Height: ha = 23.89442984831
Height: hb = 7.9654766161
Height: hc = 7.3522091841

Median: ma = 24.69881780705
Median: mb = 15.03332963784
Median: mc = 12.28882057274

Inradius: r = 3.2965765308
Circumradius: R = 13.05875082679

Vertex coordinates: A[26; 0] B[0; 0] C[3.15438461538; 7.3522091841]
Centroid: CG[9.71879487179; 2.45106972803]
Coordinates of the circumscribed circle: U[13; -1.22441414001]
Coordinates of the inscribed circle: I[5; 3.2965765308]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 162.1611371248° = 162°9'41″ = 0.31113428058 rad
∠ B' = β' = 113.2188007743° = 113°13'5″ = 1.16655656459 rad
∠ C' = γ' = 84.62106210089° = 84°37'14″ = 1.66546842019 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.