# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 5.6   b = 3.9   c = 2.18

Area: T = 3.15546664863
Perimeter: p = 11.68
Semiperimeter: s = 5.84

Angle ∠ A = α = 132.0899400414° = 132°5'22″ = 2.30553949442 rad
Angle ∠ B = β = 31.11991534596° = 31°7'9″ = 0.54331316883 rad
Angle ∠ C = γ = 16.79114461263° = 16°47'29″ = 0.29330660211 rad

Height: ha = 1.12766666023
Height: hb = 1.61877776853
Height: hc = 2.8944189437

Median: ma = 1.46332839779
Median: mb = 3.77554072628
Median: mc = 4.70107339852

Inradius: r = 0.54401826175
Circumradius: R = 3.77330771388

Vertex coordinates: A[2.18; 0] B[0; 0] C[4.79441284404; 2.8944189437]
Centroid: CG[2.32547094801; 0.96547298123]
Coordinates of the circumscribed circle: U[1.09; 3.61222030805]
Coordinates of the inscribed circle: I[1.94; 0.54401826175]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 47.91105995858° = 47°54'38″ = 2.30553949442 rad
∠ B' = β' = 148.881084654° = 148°52'51″ = 0.54331316883 rad
∠ C' = γ' = 163.2098553874° = 163°12'31″ = 0.29330660211 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.