# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 49   b = 43   c = 86.26

Area: T = 688.1443811809
Perimeter: p = 178.26
Semiperimeter: s = 89.13

Angle ∠ A = α = 21.78803279402° = 21°46'49″ = 0.38801384347 rad
Angle ∠ B = β = 19.00328054502° = 19°10″ = 0.33216615222 rad
Angle ∠ C = γ = 139.217686661° = 139°13'1″ = 2.43297926966 rad

Height: ha = 28.08875025228
Height: hb = 32.00766889213
Height: hc = 15.95551080874

Median: ma = 63.59875141024
Median: mb = 66.77330769098
Median: mc = 16.27327717369

Inradius: r = 7.72106755504
Circumradius: R = 66.02990105357

Vertex coordinates: A[86.26; 0] B[0; 0] C[46.33296290285; 15.95551080874]
Centroid: CG[44.19765430095; 5.31883693625]
Coordinates of the circumscribed circle: U[43.13; -49.99663331888]
Coordinates of the inscribed circle: I[46.13; 7.72106755504]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 158.221967206° = 158°13'11″ = 0.38801384347 rad
∠ B' = β' = 160.997719455° = 160°59'50″ = 0.33216615222 rad
∠ C' = γ' = 40.78331333904° = 40°46'59″ = 2.43297926966 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.