# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 5   b = 27   c = 30

Area: T = 56.78802782663
Perimeter: p = 62
Semiperimeter: s = 31

Angle ∠ A = α = 8.05993164236° = 8°3'34″ = 0.14106616071 rad
Angle ∠ B = β = 49.20766050518° = 49°12'24″ = 0.85988172719 rad
Angle ∠ C = γ = 122.7344078525° = 122°44'3″ = 2.14221137747 rad

Height: ha = 22.71221113065
Height: hb = 4.20659465382
Height: hc = 3.78553518844

Median: ma = 28.43297379517
Median: mb = 16.74106690428
Median: mc = 12.32988280059

Inradius: r = 1.83216218796
Circumradius: R = 17.83218957024

Vertex coordinates: A[30; 0] B[0; 0] C[3.26766666667; 3.78553518844]
Centroid: CG[11.08988888889; 1.26217839615]
Coordinates of the circumscribed circle: U[15; -9.64224324909]
Coordinates of the inscribed circle: I[4; 1.83216218796]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 171.9410683576° = 171°56'26″ = 0.14106616071 rad
∠ B' = β' = 130.7933394948° = 130°47'36″ = 0.85988172719 rad
∠ C' = γ' = 57.26659214754° = 57°15'57″ = 2.14221137747 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.