# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 10   b = 23   c = 23

Area: T = 112.2549721603
Perimeter: p = 56
Semiperimeter: s = 28

Angle ∠ A = α = 25.11217155972° = 25°6'42″ = 0.4388282118 rad
Angle ∠ B = β = 77.44441422014° = 77°26'39″ = 1.35216552678 rad
Angle ∠ C = γ = 77.44441422014° = 77°26'39″ = 1.35216552678 rad

Height: ha = 22.45499443206
Height: hb = 9.76108453568
Height: hc = 9.76108453568

Median: ma = 22.45499443206
Median: mb = 13.5
Median: mc = 13.5

Inradius: r = 4.00989186287
Circumradius: R = 11.78217664143

Vertex coordinates: A[23; 0] B[0; 0] C[2.17439130435; 9.76108453568]
Centroid: CG[8.39113043478; 3.25436151189]
Coordinates of the circumscribed circle: U[11.5; 2.56112535683]
Coordinates of the inscribed circle: I[5; 4.00989186287]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.8888284403° = 154°53'18″ = 0.4388282118 rad
∠ B' = β' = 102.5565857799° = 102°33'21″ = 1.35216552678 rad
∠ C' = γ' = 102.5565857799° = 102°33'21″ = 1.35216552678 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.