# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 25   b = 29   c = 29

Area: T = 327.0976602703
Perimeter: p = 83
Semiperimeter: s = 41.5

Angle ∠ A = α = 51.06664578882° = 51°3'59″ = 0.89112778275 rad
Angle ∠ B = β = 64.46767710559° = 64°28' = 1.12551574131 rad
Angle ∠ C = γ = 64.46767710559° = 64°28' = 1.12551574131 rad

Height: ha = 26.16877282163
Height: hb = 22.55883863933
Height: hc = 22.55883863933

Median: ma = 26.16877282163
Median: mb = 22.86437267303
Median: mc = 22.86437267303

Inradius: r = 7.88218458483
Circumradius: R = 16.06994117779

Vertex coordinates: A[29; 0] B[0; 0] C[10.7765862069; 22.55883863933]
Centroid: CG[13.25986206897; 7.51994621311]
Coordinates of the circumscribed circle: U[14.5; 6.92664705939]
Coordinates of the inscribed circle: I[12.5; 7.88218458483]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 128.9343542112° = 128°56'1″ = 0.89112778275 rad
∠ B' = β' = 115.5333228944° = 115°32' = 1.12551574131 rad
∠ C' = γ' = 115.5333228944° = 115°32' = 1.12551574131 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.