# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 64.69   b = 64.88   c = 25.28

Area: T = 803.1222420975
Perimeter: p = 154.85
Semiperimeter: s = 77.425

Angle ∠ A = α = 78.32769882281° = 78°19'37″ = 1.36770638378 rad
Angle ∠ B = β = 79.17216951234° = 79°10'18″ = 1.38218067543 rad
Angle ∠ C = γ = 22.50113166485° = 22°30'5″ = 0.39327220616 rad

Height: ha = 24.83298785276
Height: hb = 24.75771646416
Height: hc = 63.53881662164

Median: ma = 37.12220604897
Median: mb = 36.87325324598
Median: mc = 63.54400318697

Inradius: r = 10.37329082464
Circumradius: R = 33.02880794201

Vertex coordinates: A[25.28; 0] B[0; 0] C[12.15330874209; 63.53881662164]
Centroid: CG[12.4787695807; 21.17993887388]
Coordinates of the circumscribed circle: U[12.64; 30.51436761171]
Coordinates of the inscribed circle: I[12.545; 10.37329082464]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 101.6733011772° = 101°40'23″ = 1.36770638378 rad
∠ B' = β' = 100.8288304877° = 100°49'42″ = 1.38218067543 rad
∠ C' = γ' = 157.4998683351° = 157°29'55″ = 0.39327220616 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.