# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 12.04   b = 5.39   c = 10.77

Area: T = 29.02551425113
Perimeter: p = 28.2
Semiperimeter: s = 14.1

Angle ∠ A = α = 89.95988420006° = 89°57'32″ = 1.57700779842 rad
Angle ∠ B = β = 26.5954567277° = 26°35'40″ = 0.46441627621 rad
Angle ∠ C = γ = 63.44765907224° = 63°26'48″ = 1.10773519073 rad

Height: ha = 4.82114522444
Height: hb = 10.77699972213
Height: hc = 5.39899986093

Median: ma = 6.02334624594
Median: mb = 11.11001903137
Median: mc = 7.61663393438

Inradius: r = 2.05985207455
Circumradius: R = 6.02200015532

Vertex coordinates: A[10.77; 0] B[0; 0] C[10.76661281337; 5.39899986093]
Centroid: CG[7.17987093779; 1.79766662031]
Coordinates of the circumscribed circle: U[5.385; 2.69111324198]
Coordinates of the inscribed circle: I[8.71; 2.05985207455]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90.04111579994° = 90°2'28″ = 1.57700779842 rad
∠ B' = β' = 153.4055432723° = 153°24'20″ = 0.46441627621 rad
∠ C' = γ' = 116.5533409278° = 116°33'12″ = 1.10773519073 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.