# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 0.81   b = 0.47   c = 0.94

Area: T = 0.19903428486
Perimeter: p = 2.22
Semiperimeter: s = 1.11

Angle ∠ A = α = 59.50545828523° = 59°30'16″ = 1.03985508908 rad
Angle ∠ B = β = 29.99987572048° = 29°59'56″ = 0.52435770847 rad
Angle ∠ C = γ = 90.4976659943° = 90°29'48″ = 1.57994646781 rad

Height: ha = 0.47699823421
Height: hb = 0.81099695684
Height: hc = 0.40549847842

Median: ma = 0.62330770418
Median: mb = 0.8455354955
Median: mc = 0.46664761516

Inradius: r = 0.17114800438
Circumradius: R = 0.47700176585

Vertex coordinates: A[0.94; 0] B[0; 0] C[0.70114893617; 0.40549847842]
Centroid: CG[0.54771631206; 0.13549949281]
Coordinates of the circumscribed circle: U[0.47; -0.00440742271]
Coordinates of the inscribed circle: I[0.64; 0.17114800438]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 120.4955417148° = 120°29'44″ = 1.03985508908 rad
∠ B' = β' = 150.0011242795° = 150°4″ = 0.52435770847 rad
∠ C' = γ' = 89.5033340057° = 89°30'12″ = 1.57994646781 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    