# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 23   b = 30   c = 30

Area: T = 318.6455473057
Perimeter: p = 83
Semiperimeter: s = 41.5

Angle ∠ A = α = 45.0810620927° = 45°4'50″ = 0.7876805264 rad
Angle ∠ B = β = 67.46596895365° = 67°27'35″ = 1.17773936948 rad
Angle ∠ C = γ = 67.46596895365° = 67°27'35″ = 1.17773936948 rad

Height: ha = 27.7088302005
Height: hb = 21.24330315372
Height: hc = 21.24330315372

Median: ma = 27.7088302005
Median: mb = 22.12546468898
Median: mc = 22.12546468898

Inradius: r = 7.67882041701
Circumradius: R = 16.24106198662

Vertex coordinates: A[30; 0] B[0; 0] C[8.81766666667; 21.24330315372]
Centroid: CG[12.93988888889; 7.08110105124]
Coordinates of the circumscribed circle: U[15; 6.22655709487]
Coordinates of the inscribed circle: I[11.5; 7.67882041701]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 134.9199379073° = 134°55'10″ = 0.7876805264 rad
∠ B' = β' = 112.5440310464° = 112°32'25″ = 1.17773936948 rad
∠ C' = γ' = 112.5440310464° = 112°32'25″ = 1.17773936948 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.