# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 3.2   b = 8.4   c = 10.09

Area: T = 12.37113311086
Perimeter: p = 21.69
Semiperimeter: s = 10.845

Angle ∠ A = α = 16.97334268223° = 16°58'24″ = 0.29662421834 rad
Angle ∠ B = β = 50.02438007357° = 50°1'26″ = 0.87330800272 rad
Angle ∠ C = γ = 113.0032772442° = 113°10″ = 1.9722270443 rad

Height: ha = 7.73220819429
Height: hb = 2.94655550259
Height: hc = 2.45221964536

Median: ma = 9.14546186361
Median: mb = 6.19554862602
Median: mc = 3.86662611138

Inradius: r = 1.14107405356
Circumradius: R = 5.48108006838

Vertex coordinates: A[10.09; 0] B[0; 0] C[2.05659018831; 2.45221964536]
Centroid: CG[4.0498633961; 0.81773988179]
Coordinates of the circumscribed circle: U[5.045; -2.14217635574]
Coordinates of the inscribed circle: I[2.445; 1.14107405356]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 163.0276573178° = 163°1'36″ = 0.29662421834 rad
∠ B' = β' = 129.9766199264° = 129°58'34″ = 0.87330800272 rad
∠ C' = γ' = 66.9977227558° = 66°59'50″ = 1.9722270443 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.