# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 99.43   b = 105.71   c = 50

Area: T = 2467.222239703
Perimeter: p = 255.14
Semiperimeter: s = 127.57

Angle ∠ A = α = 699.0001648508° = 69°1″ = 1.20442800611 rad
Angle ∠ B = β = 833.0001514212° = 83°1″ = 1.4498625922 rad
Angle ∠ C = γ = 287.9996837281° = 27°59'59″ = 0.48986866706 rad

Height: ha = 49.62773236857
Height: hb = 46.67990728793
Height: hc = 98.68988958814

Median: ma = 66.07436015743
Median: mb = 58.30553293019
Median: mc = 99.52662000681

Inradius: r = 19.34401457791
Circumradius: R = 53.25219145448

Vertex coordinates: A[50; 0] B[0; 0] C[12.1177208; 98.68988958814]
Centroid: CG[20.7065736; 32.89662986271]
Coordinates of the circumscribed circle: U[25; 47.01987877629]
Coordinates of the inscribed circle: I[21.86; 19.34401457791]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 1110.999835149° = 110°59'59″ = 1.20442800611 rad
∠ B' = β' = 976.9998485788° = 96°59'59″ = 1.4498625922 rad
∠ C' = γ' = 1522.000316272° = 152°1″ = 0.48986866706 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    