# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 76.6   b = 64.28   c = 100

Area: T = 2461.924399655
Perimeter: p = 240.88
Semiperimeter: s = 120.44

Angle ∠ A = α = 49.99660385674° = 49°59'46″ = 0.8732595486 rad
Angle ∠ B = β = 40.0010926664° = 40°3″ = 0.69881478741 rad
Angle ∠ C = γ = 90.00330347686° = 90°11″ = 1.57108492935 rad

Height: ha = 64.28799999098
Height: hb = 76.65999998926
Height: hc = 49.23884799309

Median: ma = 74.82769283079
Median: mb = 83.07110563313
Median: mc = 49.9977391932

Inradius: r = 20.44110826681
Circumradius: R = 500.0000000701

Vertex coordinates: A[100; 0] B[0; 0] C[58.6788208; 49.23884799309]
Centroid: CG[52.8932736; 16.41328266436]
Coordinates of the circumscribed circle: U[50; -0.00326483352]
Coordinates of the inscribed circle: I[56.16; 20.44110826681]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 130.0043961433° = 130°14″ = 0.8732595486 rad
∠ B' = β' = 139.9999073336° = 139°59'57″ = 0.69881478741 rad
∠ C' = γ' = 89.99769652314° = 89°59'49″ = 1.57108492935 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.