# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 6.4   b = 8.49   c = 10.05

Area: T = 27.00108099071
Perimeter: p = 24.94
Semiperimeter: s = 12.47

Angle ∠ A = α = 39.26441825973° = 39°15'51″ = 0.68552892644 rad
Angle ∠ B = β = 57.09655233471° = 57°5'44″ = 0.99765048706 rad
Angle ∠ C = γ = 83.64402940556° = 83°38'25″ = 1.46597985186 rad

Height: ha = 8.4387753096
Height: hb = 6.36106148191
Height: hc = 5.37332955039

Median: ma = 8.73550615338
Median: mb = 7.27774463241
Median: mc = 5.59219070987

Inradius: r = 2.165526142
Circumradius: R = 5.05661150006

Vertex coordinates: A[10.05; 0] B[0; 0] C[3.47767363184; 5.37332955039]
Centroid: CG[4.50989121061; 1.79110985013]
Coordinates of the circumscribed circle: U[5.025; 0.56600659777]
Coordinates of the inscribed circle: I[3.98; 2.165526142]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 140.7365817403° = 140°44'9″ = 0.68552892644 rad
∠ B' = β' = 122.9044476653° = 122°54'16″ = 0.99765048706 rad
∠ C' = γ' = 96.36597059444° = 96°21'35″ = 1.46597985186 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.