# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 5   b = 25   c = 26

Area: T = 62.16110810717
Perimeter: p = 56
Semiperimeter: s = 28

Angle ∠ A = α = 11.02766094668° = 11°1'36″ = 0.19224506405 rad
Angle ∠ B = β = 73.00438351829° = 73°14″ = 1.27441572905 rad
Angle ∠ C = γ = 95.97695553502° = 95°58'10″ = 1.67549847225 rad

Height: ha = 24.86444324287
Height: hb = 4.97328864857
Height: hc = 4.78216216209

Median: ma = 25.3822080293
Median: mb = 13.93773598648
Median: mc = 12.49899959968

Inradius: r = 2.22200386097
Circumradius: R = 13.07108794955

Vertex coordinates: A[26; 0] B[0; 0] C[1.46215384615; 4.78216216209]
Centroid: CG[9.15438461538; 1.59438738736]
Coordinates of the circumscribed circle: U[13; -1.35993714675]
Coordinates of the inscribed circle: I[3; 2.22200386097]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 168.9733390533° = 168°58'24″ = 0.19224506405 rad
∠ B' = β' = 106.9966164817° = 106°59'46″ = 1.27441572905 rad
∠ C' = γ' = 84.03304446498° = 84°1'50″ = 1.67549847225 rad

# How did we calculate this triangle?

### 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.