# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 19   b = 22   c = 22

Area: T = 188.5109780913
Perimeter: p = 63
Semiperimeter: s = 31.5

Angle ∠ A = α = 51.16660039548° = 51°9'58″ = 0.89330152341 rad
Angle ∠ B = β = 64.41769980226° = 64°25'1″ = 1.12442887097 rad
Angle ∠ C = γ = 64.41769980226° = 64°25'1″ = 1.12442887097 rad

Height: ha = 19.8433134833
Height: hb = 17.13772528103
Height: hc = 17.13772528103

Median: ma = 19.8433134833
Median: mb = 17.36437553542
Median: mc = 17.36437553542

Inradius: r = 5.98444374893
Circumradius: R = 12.19656536624

Vertex coordinates: A[22; 0] B[0; 0] C[8.20545454545; 17.13772528103]
Centroid: CG[10.06881818182; 5.71224176034]
Coordinates of the circumscribed circle: U[11; 5.26663049906]
Coordinates of the inscribed circle: I[9.5; 5.98444374893]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 128.8343996045° = 128°50'2″ = 0.89330152341 rad
∠ B' = β' = 115.5833001977° = 115°34'59″ = 1.12442887097 rad
∠ C' = γ' = 115.5833001977° = 115°34'59″ = 1.12442887097 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.