# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 74.12   b = 75.19   c = 105.58

Area: T = 2786.541139966
Perimeter: p = 254.89
Semiperimeter: s = 127.445

Angle ∠ A = α = 44.59898494399° = 44°35'23″ = 0.77882396857 rad
Angle ∠ B = β = 45.41110455042° = 45°24'40″ = 0.79325722608 rad
Angle ∠ C = γ = 89.99991050559° = 89°59'57″ = 1.57107807071 rad

Height: ha = 75.19899999908
Height: hb = 74.1219999991
Height: hc = 52.78554025319

Median: ma = 83.82765629142
Median: mb = 83.10987924049
Median: mc = 52.79108244868

Inradius: r = 21.86546584775
Circumradius: R = 52.79900000064

Vertex coordinates: A[105.58; 0] B[0; 0] C[52.03334092631; 52.78554025319]
Centroid: CG[52.53878030877; 17.59551341773]
Coordinates of the circumscribed circle: U[52.79; 0.00108245651]
Coordinates of the inscribed circle: I[52.255; 21.86546584775]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135.411015056° = 135°24'37″ = 0.77882396857 rad
∠ B' = β' = 134.5898954496° = 134°35'20″ = 0.79325722608 rad
∠ C' = γ' = 90.00108949441° = 90°3″ = 1.57107807071 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    